V8.0
/ec-datahub-svc/rest/v8.0/tenant/{tenantId}/studies/{studyId}/dataCollection
Retrieves the study-permissioned Study Design dataset for a single study and mode.
The dataset exposes versioned study design configuration, including branches, visits, scheduled-from relationships, forms, item groups, items, value and codelist settings, display and validation properties, and design audit columns.
Supports select, filter, sort, limit, and offset query patterns.
The dataset returns rows for design elements at branch, event, form, and item granularity for the study versions available in the selected mode.
This version additionally includes the following data points: REASON_FOR_REVISION, VERSION_TITLE, IS_APPROVED, EARLIEST_VISIT_TO_COMPLETE, VISIT_ORDER, FORM_ORDER, ITEM_ORDER, ITEM_GROUP_ORDER, DATA_CLASSIFICATION, DATA_TYPE, and APPLY_CHANGE_VERSION.
Required permission: DataCollectionDesignDatasetPost.
Recommended order columns: The backend query always orders results by DH_TIMESTAMP and VERSION_START in ascending order first. If orderColumns is empty, only these two columns are used. If orderColumns is provided, the specified columns are appended after DH_TIMESTAMP and VERSION_START. For stable, deterministic pagination, use STUDY_ID, STUDY_VERSION, BRANCH_ID, EVENT_ID, FORM_ID, ITEM_ID, and SCHEDULED_FROM_EVENT_ID in the orderColumns field of the request payload.
Request
-
studyId(required): string(uuid)
Unique study identifier supplied in the
studyIdpath parameter.Use the uppercase hexadecimal UUID value for the study.
Example:
0C7CBA3F70034C47947E2FAB086BFBF5. -
tenantId(required): string(uuid)
Unique tenant identifier supplied in the
tenantIdpath parameter.Use the uppercase hexadecimal UUID value for the tenant.
Example:
EC942244BB30163BE053BEC44C64CF34.
-
limit: integer(int32)
Minimum Value:
0Page size for the result set.
0disables pagination and returns the maximum result set allowed by the dataset endpoint.- Positive values enable pagination.
- Negative values return HTTP 400.
Example:100 -
offset: integer(int32)
Minimum Value:
0Zero-based row offset.
- Counts rows, not pages.
- To fetch the next page, repeat the same request body and set
offset = previous offset + previous count. - When
limit = 0, this value is ignored and the response echoesoffset = 0. - When
limit > 0, an offset beyond the available rows returns HTTP 200 with an empty page. - Negative values return HTTP 400.
Example:0
- application/json
objectSubmit a structured query for a Data Hub dataset.
selectColumnsis required and must contain one or more valid column names exposed by the target dataset version.whereColumnsis optional and provides structured filter predicates. Supported operators are=,!=,<>,>,>=,<,<=,LIKE,NOT LIKE,IN,NOT IN,BETWEEN,NOT BETWEEN,IS, andIS NOT.Default behavior: Data is filtered based on the
STUDY_WIDcolumn.orderColumnsis optional and controls sort order. For stable multi-page retrieval, keep the sameorderColumnsacross page requests.
-
orderColumns: array
orderColumns
Optional sort instructions to apply to the result set.
Duplicate order-by columns are rejected.
-
selectColumns: array
selectColumns
Required non-empty list of dataset column names to return.
Column validation is case-insensitive, and the response echoes canonical uppercase dataset column names in the same order.
-
whereColumns: array
whereColumns
Optional structured filter predicates.
This is the request-body equivalent of a
WHEREclause.All predicate values are supplied as strings and are parsed according to the underlying dataset column type.
arrayOptional sort instructions to apply to the result set.
Duplicate order-by columns are rejected.
-
Array of:
object QueryOrder
Sort instruction specifying a dataset column and optional order direction.
[
{
"columnName":"VERSION_START",
"sortOrder":"ASC"
}
]arrayRequired non-empty list of dataset column names to return.
Column validation is case-insensitive, and the response echoes canonical uppercase dataset column names in the same order.
-
Array of:
string
Required non-empty list of dataset column names to return.
Column validation is case-insensitive, and the response echoes canonical uppercase dataset column names in the same order.
Example:["STUDY_VERSION","STUDY_ID"]
[
"STUDY_VERSION",
"STUDY_ID"
]arrayOptional structured filter predicates.
This is the request-body equivalent of a WHERE clause.
All predicate values are supplied as strings and are parsed according to the underlying dataset column type.
-
Array of:
object QueryPredicate
Structured filter predicate used to constrain dataset results by column, operator, and value
[
{
"columnName":"STUDY_ID",
"operator":"=",
"value":[
"A86F2D0BB610404DB62D37AFA9C20B50"
]
}
]objectSort instruction specifying a dataset column and optional order direction.
-
columnName: string
Required dataset column name to sort by.
Column-name validation is case-insensitive.
Example:VERSION_START -
sortOrder: string
Allowed Values:
[ "ASC", "DESC" ]Optional sort direction.
If omitted, SQL default ascending order is used for that column. Allowed values are ASC and DESC.
Example:ASC
[
{
"columnName":"VERSION_START",
"sortOrder":"ASC"
}
]object-
columnName: string
Required dataset column name to filter on. Column-name validation is case-insensitive.Example:
STUDY_ID -
operator: string
Allowed Values:
[ ">", "<", "=", ">=", "<=", "<>", "!=", "IN", "NOT IN", "BETWEEN", "NOT BETWEEN", "LIKE", "NOT LIKE", "IS", "IS NOT" ]Required comparison operator. Use one value for =, !=, <>, >, >=, <, <="," like, and not like; one or more values for in in; exactly two between between; value equal to null is not.< div>Example:,>= -
value: array
value
Filter values as strings. Value cardinality depends on the operator: one for most operators, one or more for IN/NOT IN, exactly two for BETWEEN/NOT BETWEEN, and exactly one value equal to NULL for IS/IS NOT.
[
{
"columnName":"STUDY_ID",
"operator":"=",
"value":[
"A86F2D0BB610404DB62D37AFA9C20B50"
]
}
]array-
Array of:
string
Filter values as strings. Value cardinality depends on the operator: one for most operators, one or more for IN/NOT IN, exactly two for BETWEEN/NOT BETWEEN, and exactly one value equal to NULL for IS/IS NOT.Example:
["A86F2D0BB610404DB62D37AFA9C20B50"]
[
"A86F2D0BB610404DB62D37AFA9C20B50"
]Response
- application/json
- text/plain
200 Response
Response behavior
- The response is tabular.
columnsdefines the selected output order, and each row indatafollows that same order. - Every value in
datais returned as a JSON string ornull, including logical numbers and date/time values. hasMore = "true"means more matching rows exist after the current page.- If filters match no rows, or
offsetis beyond the last row, the API returns HTTP 200 withdata = [],count = 0, andhasMore = "false".
Section index
Study context | Branch context | Event context | Form context | Item context | Audit context | Reference and system identifiers
Study context
Study-level identifiers, version metadata, and protocol attributes associated with the dataset row.
| Column Name | Data Type | Description |
|---|---|---|
STUDY_TITLE | VARCHAR2(4000 CHAR) | The When you include multiple study versions in your dataset, and each has a different title, the
|
STUDY_ID_NAME | VARCHAR2(64 CHAR) | A study ID as specified by the study manager when they created the study, such as a protocol acronym and protocol number. |
STUDY_REFNAME | VARCHAR2(64 CHAR) | Indicates the study's reference name used by the system. This value is composed by the STUDY_ID_NAME converted to uppercase with blank spaces removed. Once created, this value never changes, even if STUDY_ID_NAME is changed. |
STUDY_VERSION | VARCHAR2(32 CHAR) | Indicates the study version number of the referencing data in a custom report. |
VERSION_TITLE | VARCHAR2(64 CHAR) | Indicates the title of the study version. If a value has not been specified for this element, its value displays as |
STUDY_DESIGN_STATUS | VARCHAR2(16 CHAR) | Indicates the study design version status associated with the dataset row. Possible values include DRAFT, TESTING, APPROVED, ARCHIVED, or OLDDRAFT. |
IS_APPROVED | CHAR(1) | This element aides in reviewing Archived study versions that may have been in the
|
REASON_FOR_REVISION | VARCHAR2(32 CHAR) | Indicates the user provided reason for revising the study version. This reason is provided when moving a study version from Test to Active container. If a value has not been specified for this element, its value displays as NULL. Possible values include INITIAL, PROTOCOL_AMENDMENT, REVISION, or VERSION. |
STUDY_PHASE | VARCHAR2(64 CHAR) | A study's phase as indicated by the study manager when they created the study. Possible values include I, I/II, II, II/III, III, IV, or Other. |
BLINDING_TYPE | VARCHAR2(64 CHAR) | Indicates whether the study is an open-label type of study or a blinded study, as specified by the study manager when they created the study. Possible values include OpenLabel, Blinded, OpenLabelBlinded, or Observational. |
THERAPEUTIC_AREA | VARCHAR2(64 CHAR) | Indicates the therapeutic area as specified by the study manager when they created the study. Possible values include CardiologyVascularDiseases, DentalOralHealth, Dermatology, Endocrinology, FamilyMedicine, Gastroenterology, GeneticDisease, HealthyVolunteers, Hematology, Hepatology, Immunology, InfectionsInfectiousDisease, Musculoskeletal, Nephrology, Neurology, NutritionWeightLoss, ObstetricsGynecology, Oncology, Ophthalmology, Otolaryngology, PediatricsNeonatology, PlasticSurgery, PharmacologyToxicology, Podiatry, PsychiatryPsychology, PulmonaryRespiratoryDiseases, Rheumatology, Sleep, Trauma, Urology, or Vaccines. |
REQ_SCREENING | CHAR(1) | Indicates if the question is required for screening. Possible values include Y or N. |
REQ_RANDOMIZE | CHAR(1) | Indicates if the question is required for randomization. Possible values include Y or N. |
REQ_DISPENSE | CHAR(1) | Indicates if the question is required for dispensation. Possible values include Y or N. |
OCC_ENABLED | CHAR(1) | Indicates if a study is currently enabled for Electronic Health Record (EHR) data import.
|
SAFETY_INTEGRATION_ENABLED | CHAR(1) | Indicates if the Clinical One Cloud Service to Safety integration is enabled for the study. Possible values include Y or N. |
Parent topic: Section index
Branch context
Branching and assignment rules that determine subject flow through the study design.
| Column Name | Data Type | Description |
|---|---|---|
BRANCH_TITLE | VARCHAR2(64 CHAR) | Indicates the branch title or name. |
BRANCH_REFNAME | VARCHAR2(64 CHAR) | Indicates the branch reference name used by the system. |
BRANCH_VISIT | VARCHAR2(64 CHAR) | Specifies the visit containing the selected form and question that is used to assign subjects to the current branch, in case subjects are assigned to the branch by form question. |
BRANCH_FORM | VARCHAR2(64 CHAR) | Specifies which form contains the question used to assign subjects to the current branch, in case subjects are assigned to the branch by form question. |
BRANCH_QUESTION | VARCHAR2(4000 CHAR) | Specifies which question is used to assign subjects to the current branch, in case subjects are assigned to the branch by form question. |
BRANCH_ANSWER | VARCHAR2(4000 CHAR) | Specifies which exact answer to the selected question is used to assign subjects to the current branch, in case subjects are assigned to the branch by form question. |
BRANCH_ARM | VARCHAR2(32767 CHAR) | Specifies which treatment arm(s) correspond to the current branch, in case subjects are assigned to the branch by treatment arm. |
IS_CYCLE_BRANCH | CHAR(1) | States whether the branch is cycled. Possible values include Y or N. |
CYCLE_COUNT | NUMBER | Specifies the number of cycles in case the branch is cycled. |
ASSIGN_SUBJECT_USING_FORM_QUESTION | CHAR(1) | Indicates if subjects get assigned to branch by a form question. Possible values include Y or N. |
ASSIGN_SUBJECT_USING_TREATMENT_ARM | CHAR(1) | Indicates if subjects are assigned to the branch by Treatment arm. Possible values include Y or N. |
Parent topic: Section index
Event context
Event metadata, visit scheduling, and visit-status attributes associated with the dataset row.
| Column Name | Data Type | Description |
|---|---|---|
EVENT_TITLE | VARCHAR2(64 CHAR) | The event's title, defined by the user when an event is created. |
EVENT_ID_NAME | VARCHAR2(16 CHAR) | The event's id as in Clinical One Cloud Service. |
EVENT_REFNAME | VARCHAR2(64 CHAR) | The event's reference name. Displays a capitalized version of the (user entered) Note: This value does not change if the associated |
EVENT_TYPE | VARCHAR2(32) | Displays the type of event that impacts a visit's status. Upon selecting this data element, only events that occurred in your study are displayed. For example, you may see some of the following events:
|
VISIT_TYPE | VARCHAR2(32 CHAR) | Indicates the event type as specified by the study designer when they created the event. Possible values include ScreeningVisit, ScheduleAbleVisit, SubjectWithdrawalVisit, SubjectCompletionVisit, UnScheduleAbleVisit, Event, AdverseEvent, ScreenFailureVisit, or ReScreeningEvent. |
VISIT_ORDER | NUMBER | An integer indicating a visit's ordinal position (order) within the visit schedule for the selected study version. These values may change across versions; for example, a visit that is in position 3 in version Note: Ordinal values are study design attributes only and do not reflect a subject's progress through a study or carry clinical significance. About draft study versions: About visits: The dataset output displays scheduled (non-branch and branch) visits and unscheduled visits in the following manner.
Note: A tier, the highest level in visit branch design, is used to organize parallel branches, also called arms or cohorts. Each branch consists of a group of visits. For instance, a study includes two tiers (Tier1 and Tier2); each consists of two branches (BranchA and BranchB), and each branch contains a set of visits (Day1 and Day15). When sorted in ascending order, they appear as follows in the output.
|
VISIT_CREATION_ORDER | NUMBER | Indicates the order number the event was created in relation to when the study started. |
VISIT_HOUR_SEQ_ORDER | NUMBER | The order in which subject visits occur, as configured in the study design. |
VISIT_IS_REQUIRED | CHAR(1) | Indicates if a visit is required. Possible values include Y or N. |
IS_SCHEDULED_VISIT | CHAR(1) | Indicates if the visit is scheduled. Possible values include Y or N. |
SCHEDULED_FROM_EVENT_NAME | VARCHAR2(64 CHAR) | Displays the Note: If a visit is not scheduled or it is the first visit in the schedule, then this element is populated with the visit's own title. For example, Screening Visit is displayed for the Screening Visit, if it is the first visit in the schedule. |
SCHEDULED_FROM_EVENT_REFNAME | VARCHAR2(64 CHAR) | Displays the Note: If a visit is not scheduled or it is the first visit in the schedule, then this element is populated with that visit's own refname.. |
EARLIEST_VISIT_TO_COMPLETE | VARCHAR2(64 CHAR) | When creating a study completion visit, you can specify an earlier visit that must be completed in order to enable the option for marking the subject as Complete. The reference name of that specified scheduled visit is provided in this field. This data element is added for each event. However, it is only specified when the record is for a Subject Completion event, while all other records display as a |
DELAY_DAYS | NUMBER | The number of days between the prior scheduled visit. |
DELAY_HOURS | NUMBER | The number of hours between the prior scheduled visit (in addition to the DELAY_DAYS field). |
VISIT_WINDOW_BEFORE_DAYS | NUMBER | Indicates how many days before the scheduled date and time the visit can occur, as entered by a study designer. |
VISIT_WINDOW_BEFORE_HOURS | NUMBER | Indicates how many hours before the scheduled date and time the visit can occur, as entered by a study designer. |
VISIT_WINDOW_AFTER_DAYS | NUMBER | Indicates how many days after the scheduled date and time the visit can occur. |
VISIT_WINDOW_AFTER_HOURS | NUMBER | Indicates how many hours after the scheduled date and time the visit can occur. |
ALERT_OUTSIDE_VISIT_WINDOW | VARCHAR2(16 CHAR) | Indicates if there is any rule set to alert if visit date is out of window. Values can be:
|
Parent topic: Section index
Form context
Form-level design or collected-form attributes associated with the dataset row.
| Column Name | Data Type | Description |
|---|---|---|
FORM_NAME | VARCHAR2(64 CHAR) | The name of the form, as specified by the study designer. |
FORM_REFNAME | VARCHAR2(64 CHAR) | A form's reference name. |
FORM_TYPE | VARCHAR2(14) | Indicates the type of form:
|
FORM_ORDER | NUMBER | An integer indicating a form's ordinal position (order) within a visit for the selected study version. These values may change across versions; for example, a form that is in position 3 in version 1.0.0.1 may shift to position 4 in a later version if a new form is inserted at position 3. Note: Ordinal values are positive integers that indicate the sequence of forms in a visit as defined by the study design. They do not indicate if a form was started or completed and do not carry any clinical significance. About Advanced Study Versioning (ASV): Duplicate However, if the dataset is generated for version 1.0.0.2, no duplicate values appear and the order is sequentially correct. |
FORM_IS_REPEATING | CHAR(1) | Indicates whether the form is repeating. Possible values include Y or N. |
ALLOW_MULTIPLE_INSTANCES | NUMBER | Indicates whether multiple instances of the same form can be added within a visit. Possible values include 0 or 1. |
ALLOW_ADDITIONAL_ROWS | CHAR(1) | Indicates if this is a repeating form or table that allows additional rows to be added. Possible values include Y or N. |
FORM_IS_ROLLOVER | CHAR(1) | Indicates whether the form is rollover. Possible values include Y or N. |
SOURCE_STUDY_NAME | VARCHAR2(64 CHAR) | If it is a copied form, indicates the name of the study it was copied from. |
SOURCE_STUDY_VERSION | VARCHAR2(32 CHAR) | If it is a copied form, indicates the study version of the study it was copied from. |
SOURCE_DATAVIEW_NAME | VARCHAR2(64 CHAR) | If it is a copied form, indicates the original form it was copied from. |
SOURCE_VERSION_START | TIMESTAMP(6) | If it is a copied form, indicates the date and time of when the copied data was entered. |
RULE_COPY_STATUS | NUMBER | If it is a copied form, indicates the status of the source form rules copy. Possible values include 0 or 1. |
Parent topic: Section index
Item context
Question-level configuration and collected item attributes associated with the dataset row.
| Column Name | Data Type | Description |
|---|---|---|
ITEM_NAME | VARCHAR2(4000 CHAR) | Indicates the title of the question, as entered by a study designer. |
QUESTION_TYPE | VARCHAR2(32 CHAR) | Indicates the type of question as defined by a study designer. For example:
|
DATA_TYPE | VARCHAR2(64 CHAR) | Indicates the data format of the collected data. Note: Data type refers to how collected data is stored, which is different from the question type that defines how the question is presented to the site user. Possible values include |
FORMAT | VARCHAR2(40 CHAR) | Specifies the answer format. For example an specific date format, or the number of decimals after the point. |
QUESTION_HINT | VARCHAR2(4000 CHAR) | Indicates information that a study designer provided as a hint to help answer a question. |
MEASURE_UNIT | VARCHAR2(64 CHAR) | Indicates the measure of unit specified by a study designer for a Number type of question. |
ITEM_GROUP | VARCHAR2(64 CHAR) | If this is a group question, indicates the group question title. |
ITEM_GROUP_ORDER | NUMBER | Indicates the order of items on two-section forms and in question group type questions. For example, a study's design includes a question group labeled Scan For any other form or question types, |
ITEM_ORDER | NUMBER | A numeric value indicating the ordinal position (order) of a question on a form for the selected study version.
In a later/latest study version, the order may be displayed as consecutive integers (for example): Note: Ordinal values indicate the sequence of questions on forms as defined by the study design for the selected study version. They do not indicate whether a question was answered and do not carry any clinical significance. About Age items on forms: When an Age item is added to a form, the system also adds a Date of Birth field and displays them together, making it appear as a single question in the study design. In the study design dataset, however, Age (a calculated item) and Date of Birth are recorded as two distinct items, each on its own row with a unique ordinal value. |
GROUP_TYPE | VARCHAR2(32 CHAR) | Indicates if this is a group question. Possible values include QuestionGroup, section, or table. |
SAS_VARIABLE | VARCHAR2(32 CHAR) | Indicates the SAS Variable of a form defined by a study designer. |
SAS_LABEL | VARCHAR2(4000 CHAR) | Indicates the SAS Label of a form defined by a study designer. |
REFERENCE_CODE | VARCHAR2(64 CHAR) | Indicates a question's reference code. |
CODE_QUESTION | VARCHAR2(32767 CHAR) | If the question has a Coding Question property, lists the following information:
|
ITEM_VALUES | VARCHAR2(32767) | The raw value of the form question value (can be an array in questions with decodes). Note: This value displays as For more details see Form item output mapping in data extracts. |
CODELIST_VALUES | VARCHAR2(32767 CHAR) | Lists the codelist values added as answers to the current question. Note: This value displays as |
FORMITEM_IS_REQUIRED | CHAR(1) | Indicates if the question is required. Required questions must be answered in order to save the form that contains it. Possible values include Y or N. |
READONLY | CHAR(1) | Indicates that the question is marked as read-only by a study designer. Possible values include Y or N. |
ALLOW_FUTURE_DATE | NUMBER(1) | For Date/Time questions. Indicates if the user is allowed to enter a future date. Possible values include |
ITEM_DATE_PARTIAL_REQUIRED | VARCHAR2(32 CHAR) | Indicates the partial date format allowed when partial date entry is enabled for the question. |
HIDDEN | CHAR(1) | Indicates if a question is hidden, as marked by a study designer. Possible values include Y or N. |
DATA_CLASSIFICATION | VARCHAR2(2048 CHAR) | Indicates how the data is categorized according to its sensitivity and intended use. Applicable only to hidden items. This data element populates with a comma separated list of all the selected data classification groups of a hidden item. Possible values for this element include:
|
EHR_MAPPING | VARCHAR2(32767 CHAR) | Displays the OCC data dictionary mapping value for a question mapped for Electronic Health Record (EHR) data import. |
VALIDATION_RULES | VARCHAR2(32767 CHAR) | Specifies the question's validation rule if any. Validation rules types available depend on the type of question:
|
RULE_ERROR | VARCHAR2(32767 CHAR) | Reason for failure if validation status is failed or the rule validation failed. |
ACTION_RULES | VARCHAR2(32767 CHAR) | Details the action rule of a question which can be of the types:
|
APPLY_CHANGE_VERSION | VARCHAR2(32 CHAR) | Indicates the version in which changes to the form item apply. This data element refers to the lowest study version in which the change is applied. This means the change is included in all study versions between the |
SDV | VARCHAR2(12) | Specifies if the question has any SDV parameter and if it is of the type SDV for All Subjects or Critical Variables (Targeted SDV). Possible values include ALL SUBJECTS, TARGETED SDV, or NOT DEFINED. |
Parent topic: Section index
Audit context
Audit-trail metadata describing row versioning, acting users, and reason-for-change details.
| Column Name | Data Type | Description |
|---|---|---|
VERSION_START | TIMESTAMP(6) | Audit trail timestamp when this version of the dataset row became effective. Together with VERSION_END, it defines the validity window for the row version. |
VERSION_END | TIMESTAMP(6) | Indicates the date and time of when data was changed, if the data is not current. |
CURRENT_STUDY_ROLE_NAME | VARCHAR2(100 CHAR) | Current study role name of the user who updated the dataset row. If the user's study role changes later, this field shows the user's current study role. |
MODIFIED_BY | VARCHAR2(255 CHAR) | Indicates the user who last modified the study design record. |
Parent topic: Section index
Reference and system identifiers
System identifiers, numeric reference keys, and technical linkage fields carried with the dataset row.
| Column Name | Data Type | Description |
|---|---|---|
STUDY_ID | RAW(16 BYTE) | GUID of the study. |
STUDY_WID | NUMBER(10) | A number that represents the unique identifier of the study. |
EVENT_ID | RAW(16 BYTE) | GUID of the event. |
EVENT_WID | NUMBER(10) | A number that represents the unique identifier of the event. |
SCHEDULED_FROM_EVENT_ID | RAW(16 BYTE) | GUID of the event from which the visit was scheduled. |
SCHEDULED_FROM_EVENT_WID | NUMBER | A number that represents the unique identifier of the parent visit from which the associated visit was scheduled. |
FORM_ID | RAW(16 BYTE) | GUID of the form. |
FORM_WID | NUMBER | A number that represents the unique identifier of the form. |
ITEM_ID | RAW(16 BYTE) | GUID of the item. |
ITEM_WID | NUMBER(10) | A number that represents the unique identifier of the item. |
MODIFIED_BY_ID | RAW(16 BYTE) | GUID of the user who modified the study design record. |
MODIFIED_BY_WID | NUMBER(10) | A number that represents the unique identifier of the user who modified the study. |
CURRENT_STUDY_ROLE_ID | RAW(16 BYTE) | The ID associated with the study role assigned to the user who updated the given record. If the user study role changes, this field will show the current study role ID of the given user. |
CURRENT_STUDY_ROLE_WID | NUMBER(10) | Numeric identifier of the role of the user who updated the given record. If the user study role changes, this field will show the current study role of the given user. |
BRANCH_ID | RAW(16 BYTE) | Indicates the branch identifier associated with the row. |
BRANCH_WID | NUMBER(10) | A number that represents the unique identifier of the visit branch. |
SOURCE_DATAVIEW_WID | NUMBER | A number that represents the unique identifier of the source form data view in a reference copy rule. |
SOURCE_STUDY_WID | NUMBER | A number that represents the unique identifier of the source study in a reference copy rule. |
ITEM_GROUP_ID | NUMBER | Indicates the item group ID associated with the question. |
DH_TIMESTAMP | TIMESTAMP(6) | A timestamp that indicates when the data became available in the dataset. |
Parent topic: Section index
objectTabular dataset response for a dynamic Data Hub query.
columns defines the selected output order, and each row in data aligns positionally to that list.
-
columns: array
columns
Ordered dataset column names selected by the client.
Each row in
datauses this exact order. -
count: integer
(int32)
Number of rows returned in the current page.
Example:2 -
data: array
data
Row data aligned positionally with
columns.Each cell is serialized as a JSON string or
null, even for logical numbers and timestamps. -
hasMore: string
String pagination flag (
"true"or"false") indicating whether more matching rows exist after the current page.Returned as a string for backward compatibility.
Example:false -
limit: integer
(int32)
Requested page size.
Dataset endpoints commonly use
0to mean unpaginated or all rows.Example:100 -
offset: integer
(int32)
Zero-based row offset applied to the result set.
Dataset endpoints that disable pagination with
limit = 0typically echooffset = 0in the response.Example:0 -
totalResults: integer
(int32)
Total number of matching rows across all pages after filters are applied.
This can be non-zero even when the current page is empty because the requested offset is beyond the last row.
Example:2
arrayOrdered dataset column names selected by the client.
Each row in data uses this exact order.
-
Array of:
string
Ordered dataset column names selected by the client.
Each row in
datauses this exact order.Example:["STUDY_ID","RECORD_ID","STATUS"]
[
"STUDY_ID",
"RECORD_ID",
"STATUS"
]arrayRow data aligned positionally with columns.
Each cell is serialized as a JSON string or null, even for logical numbers and timestamps.
-
Array of:
array items
Row data aligned positionally with
columns.Each cell is serialized as a JSON string or
null, even for logical numbers and timestamps.
[
[
"A86F2D0BB610404DB62D37AFA9C20B50",
"REC001",
"Active"
],
[
"A86F2D0BB610404DB62D37AFA9C20B50",
"REC002",
"Inactive"
]
]arrayRow data aligned positionally with columns.
Each cell is serialized as a JSON string or null, even for logical numbers and timestamps.
-
Array of:
string
Row data aligned positionally with
columns.Each cell is serialized as a JSON string or
null, even for logical numbers and timestamps.Example:[["A86F2D0BB610404DB62D37AFA9C20B50","REC001","Active"],["A86F2D0BB610404DB62D37AFA9C20B50","REC002","Inactive"]]
[
[
"A86F2D0BB610404DB62D37AFA9C20B50",
"REC001",
"Active"
],
[
"A86F2D0BB610404DB62D37AFA9C20B50",
"REC002",
"Inactive"
]
]400 Response
Returned when the request is invalid.
- Causes include invalid
tenantIdorstudyId, negativelimitoroffset, emptyselectColumns, invalid dataset columns, invalidwhereColumnsoperator/value combinations, duplicateorderColumns, invalidsortOrder, and malformed typed filter values. - Error payload format:
{"status":"failed","result":null,"errorData":{"errorCode":"...","errorMessage":"...","details":{...}},"version":1}.
objectStandard Data Hub response envelope.
Successful responses return status as "success" and populate result. Failed responses return status as "failed" and populate errorData.
-
errorData: object
errorData
Machine-readable error payload when
statusis "failed".This field is null when
statusis "success". -
result: object
result
Payload returned by the API when
statusis "success".This field is null when
statusis "failed". -
status: string
Overall request processing status.
Allowed values are "success" and "failed".
Example:success -
version: integer
(int32)
Envelope version number.Example:
1
objectMachine-readable error payload when status is "failed".
This field is null when status is "success".
{
"errorCode":"VALIDATION_ERROR",
"errorMessage":"Invalid column name specified in the select columns: SITE_ID1",
"details":{
"field":"selectColumns"
}
}objectPayload returned by the API when status is "success".
This field is null when status is "failed".
{
"message":"Operation succeeded"
}401 Response
Returned when the request cannot be authenticated.
The response body is empty.
403 Response
Returned when the request is authenticated but the caller is not authorized to access the requested resource.
The response body contains a plain-text authorization message.
Possible response bodies:
Either the resource does not exist, or the user cannot access the resource.The entity is in maintenance mode, or the user cannot access the resource.
string500 Response
Returned when an unexpected server-side error occurs while processing the request.
The response body contains the platform error payload with the error code and description.