How do I narrow my search results?
After you submit your search query:
- On the Refine Search results page, select one or more categories of products or services from the left sidebar.
- Then for a category with search results, click Select to choose your product and release filters, and then click OK.
For search queries that contain multiple words, surround the query with quotes, and then resubmit your query. Example: "database cloud service"
How do I find the documentation for my product or service?
From the home page, click the technology categories for your products or services. If you do not know which category to pick, try the following features:
- Click the Find a product tab and search for your product or service.
- Click Browse All Products & Services at the bottom of the home page to view an alphabetical listing of products and services.
- Apple Safari: Version 6
- Google Chrome: Version 29 and later
- Mozilla Firefox: Version 24 and later
- Microsoft Internet Explorer: Version 9 and later
How the CBO Evaluates the UNION and UNION ALL Operators → using UNION ALL. When the Optimizer Uses UNION or UNION ALL The optimizer uses UNION or UNION ALL … when the SQL statement contains UNION or UNION ALL clauses. Example 2-30 shows a query without a UNION … clause. The query finds customers who are new
The UNION [ALL], INTERSECT, MINUS Operators → You can combine multiple queries using the set operators UNION, UNION ALL, INTERSECT, and MINUS … valid on columns of type BLOB, CLOB, BFILE, VARRAY, or nested table. The UNION, INTERSECT, and MINUS … results with each of the set operators. UNION Example The following statement combines the results with … the
Tips for Fast Refresh with UNION ALL → You can use fast refresh for materialized views that use the UNION ALL operator by providing a … UNION ALL operator such as the following: CREATE MATERIALIZED VIEW union_all_mv AS SELECT x.rowid AS … r1, y.rowid AS r2, a, b, c FROM x, y WHERE x.a = y.b UNION ALL SELECT p.rowid, r.rowid, a, c, d … fast_rf_union_all_mv AS SELECT
SDO_AGGR_UNION Returns a geometry object that is the topological union OR operation of the specified… → See the usage information about spatial aggregate functions in Section 1.9. Most of these aggregate functions accept a parameter of type MDSYS.SDOAGGRTYPE, which is described in Section 1.9.1.
QSM-02179 MV with UNION ALL requires compatibility >= 9.2.0 → Cause: The setting of the COMPATIBLE initialization parameter is less than 9.2.0. Action: Set COMPATIBLE to 9.2.0 or higher.
PCC-02339 host variables cannot be of union types → Cause: A C union as a host variable cannot be used. Action: This error message is followed by … another message that gives the line and column of the reference to the illegal union. Recode, using a struct or individual scalar host variables.
QSM-02170 tables must be identical across the UNION operator → Cause: A materialized view using the UNION operator was specified and the tables on each side of … the UNION operator do not match. Fast refresh is not supported in this context. Action: Restructure … the materialized view query such that the respective sides of the UNION operator have the same table.
PCC-02338 structure contains a nested struct or union → Cause: A structure used as a host variable may not have structures or unions nested within it. Action: Rewrite the variable declaration.
QSM-02176 MV with UNION ALL in a view is too complex → Cause: If a materialized view has a view whose definition involves a UNION ALL query, then the
QSM-02150 select lists must be identical across the UNION operator → Cause: You have specified a materialized view using the UNION operator and the respective queries … on each side of the UNION operator do not have the same select list. The RELATED_NAME column shows … such that the respective sides of the UNION operator have identical select lists.
PLS-00398 wrong number of columns in UNION, INTERSECT, or MINUS expression → Cause: The SELECT clauses to the left and right of a UNION, INTERSECT, or MINUS expression do not
QSM-02171 the materialized view has a join operation in the outer UNION block → Cause: Fast refresh is not supported if a materialized view having the UNION operator contains a
QSM-02177 MV with UNION ALL in a view must match the view's SELECT list → Cause: If a materialized view has a view whose definition involves a UNION ALL query, then the … SELECT * when defining a materialized view with a UNION ALL in a view.
QSM-02178 MV has a view with UNION ALL that is not fast refreshable → Cause: The materialized view has a view whose definition involves a UNION ALL query that does not … referenced in the materialized view satisfies conditions for fast refresh of a UNION ALL materialized view.
QSM-02175 some query block in UNION ALL MV is not fast refreshable → Cause: For a materialized view with UNION ALL to be fast refreshable, each query block must conform … query block in the UNION ALL to ensure it is either a materialized view with joins or aggregates.
QSM-02123 subquery and UNION materialized views must be primary key materialized views → materialized view and uses subqueries or the union operator in this context. Action: Re-create the materialized view as a primary key materialized view.
QSM-02174 the materialized view does not have a UNION ALL marker column → Cause: For a materialized view with UNION ALL to be fast refreshable, it must have a UNION ALL … distinct values in each query block. Action: Add a UNION ALL marker column to each query block in the UNION ALL query defining the materialized view.
PLS-00399 different types of columns in UNION, INTERSECT, or MINUS expression → Cause: The select lists to the left and right of a UNION, INTERSECT, or MINUS expression select at
PLS-01705 table specified by a cursor not updatable if cursor specification has a UNION or ORDER_BY → UNION or ORDER_BY. Action: Refer to ANSI document ANSI X3.135-1992 for details.
SDO_AGGR_UNION → ; Description Returns a geometry object that is the topological union ( OR operation) of the specified geometry objects. Parameters
Nested Structures and Unions → SQL SELECT empno, sal, comm, deptno INTO:emp_record FROM emp; Also, you cannot use a C union as a … host structure, nor can you nest a union in a structure that is to be used as a host structure.
Set Operators → described, including restrictions on these operators, in "The UNION [ALL], INTERSECT, MINUS Operators … ". Table 3-4 Set Operators Operator Returns UNION All rows selected by either query UNION ALL All rows
LEAST_UBOUND with Inverse Groups → upper bound is the highest level, the union of the compartments in the labels, and t he union of the … groups in the labels. With inverse groups, the least upper bound is the highest level, the union of the
Calculating Subtotals Without CUBE → Just as for ROLLUP, multiple SELECT statements combined with UNION ALL statements could provide the … would mean issuing SELECT statements linked with UNION ALL. So many SELECT statements yield … columns used in a CUBE clause, the greater the savings compared to the UNION ALL approach.
How the CBO Executes Compound Queries → of its component queries, and then combines the resulting row sources with the union, intersection … and 2-51 illustrate the process. The query in Example 2-49 uses the UNION ALL operator to select all … Executes Compound Queries with UNION ALL SELECT part FROM orders1 UNION ALL SELECT part FROM orders2 … ; Figure 2-7
SQL Features Where LOBs Cannot be Used → clobCol UNION, INTERSECT, MINUS Note: UNION ALL works for LOBs SELECT clobCol1 from tab1 UNION SELECT
SDO_GEOM.SDO_XOR Returns a geometry object that is the topological symmetric difference XOR operation… → SDO_GEOM.SDO_UNION Returns a geometry object that is the topological union (OR operation) of two
Materialized Views with Set Operators → has the UNION ALL operator at the top level and each query block in the UNION ALL, meets the … materialized view must include a constant column (known as a UNION ALL marker) that has a distinct value … "Restrictions on Fast Refresh on Materialized Views With the UNION ALL Operator" for detailed restrictions on
Recording the Locations of Datafiles, Control Files, and Online Redo Logs → redo log files for the database: SELECT NAME FROM V$DATAFILE UNION ALL SELECT MEMBER FROM V$LOGFILE … UNION ALL SELECT NAME FROM V$CONTROLFILE; Sample output follows: NAME
Operations That Can Be Parallelized → example, GROUP BY, NOT IN, SELECT DISTINCT, UNION, UNION ALL, CUBE, and ROLLUP, as well as aggregate and table functions.
GROUPING SETS Expression → in the same query. GROUP BY computes all the groupings specified and combines them with UNION ALL … , country_id ) This statement is equivalent to: GROUP BY channel_desc UNION ALL GROUP BY … calendar_month_desc UNION ALL country_id Table 18-3 shows grouping sets specification and equivalent GROUP BY … , c) GROUP BY a UNION
8 SQL Queries and Subqueries → Queries and Subqueries Creating Simple Queries Hierarchical Queries The UNION [ALL], INTERSECT, MINUS
1.9.1 SDOAGGRTYPE Object Type → of a spatial aggregate function. Figure 1-12 shows a spatial aggregate union ( SDO_AGGR_UNION … distance between the geometries. Figure 1-12 Tolerance in an Aggregate Union Operation Description of … the illustration tol_union.gif In the first aggregate union operation in Figure 1-12, where the … of two rectangles. In the second
SDO_GEOM.SDO_UNION → that is the topological union ( OR operation) of two geometry objects. Parameters
MdmHierarchy Class → defined by a database administrator using the OLAP Metadata APIs. Union MdmHierarchy, which … structures is a union MdmHierarchy for time that has two regions, one for the calendar year and … another for the fiscal year. Each region is a level MdmHierarchy. A union MdmHierarchy has an … getHierarchyType method is UNION_HIERARCHY.
Composite Columns → instead equivalent to the following groupings of a UNION ALL: ( year, quarter, month, day ), ( year … BY a, b, c UNION ALL GROUP BY a UNION ALL GROUP BY () Here, (b, c) are treated as a unit and rollup … following: GROUP BY ROLLUP(a, b, c) This would be the following: GROUP BY a, b, c UNION ALL GROUP BY … a, b
Merging Labels with the MERGE_LABEL Function → second character indicates whether to merge using the union or the intersection of the compartments in … the two labels. The third character indicates whether to merge using the union or the intersection of … varchar2(1) L Minimum level First (Level) union_fmt CONSTANT varchar2(1) U Union of the two labels … (compartments) and
Query Rewrite Using Complex Materialized Views → a materialized view complex are: set operators ( UNION, UNION ALL, INTERSECT, MINUS ), START WITH
Applying the Object Model to Remote Tables → ' UNION ALL SELECT d.deptno, d.deptname, address_t(d.deptstreet,d.deptcity,d.deptstate,d.deptzip), CAST … UNION ALL since we cannot have two employees working in more than one department. If we had to deal … with that eventuality, we could use a UNION of the rows. However, one caveat in using the UNION
Getting the Related Objects for an MdmDimension → … The following is an example of how you can get the level MdmHierarchy objects for a union … MdmDimensionDefinition Its regions. That is, if it is a union MdmHierarchy, the code obtains its component … default level MdmHierarchy, if it is a union MdmHierarchy. Methods are also available for obtaining other
Query Rewrite When Using GROUP BY Extensions → uses two strategies for rewrite: grouping match and UNION ALL rewrite. First, Oracle tries grouping … , Oracle tries a general rewrite mechanism called UNION ALL rewrite. Oracle first represents the query … with the extended GROUP BY clause as an equivalent UNION ALL query. Every grouping of the original … query is placed in a
Steps in Discovering the Metadata → MdmDimension find out whether it is a union MdmHierarchy, a level MdmHierarchy, an MdmLevel, or an
AggregateGeometry → Chapter 12. Examples The following example returns the union of the first three geometry objects in the
Non-Supported SQL Functionality for LOBs → MAX, MIN, GREATEST and LEAST SELECT DISTINCT, GROUP BY, ORDER BY (SORT), UNION, INTERSECT, MINUS JOIN
Transforming ORs into Compound Queries with the RBO → optimizer transforms it into an equivalent compound query that uses the UNION ALL set operator if this … available With the RBO, the optimizer makes this UNION ALL transformation, because each component query of
Operator Precedence → those outside. SQL also supports set operators ( UNION, UNION ALL, INTERSECT, and MINUS ), which
Sorting Query Results → operators UNION, INTERSECT, MINUS, or UNION ALL ), the ORDER BY clause must use positions, rather
Dimensionality of Expressions → An expression is dimensioned by a union of the dimensions of all the variables, dimensions … ". Function In most cases, the union of the dimensions of its input arguments Unless otherwise noted in
TO_TIMESTAMP_TZ → column in a UNION operation as TIMESTAMP WITH LOCAL TIME ZONE using the sample tables … ) order_date FROM order_items UNION SELECT order_id, to_number(), order_date FROM orders; ORDER_ID
How the Optimizer Performs Operations → Constants How the CBO Evaluates the UNION and UNION ALL Operators How the CBO Evaluates the LIKE Operator
Creating a Primary Source that Represents a Default Hierarchy → MdmDimension is a union dimension by checking to see if it has an MdmUnionDimensionDefinition. If the … union dimension. Example 6-17 Retrieving a Default Hierarchy // method that gets all of the Regions
Refresh Options → ), AND (a) ". Restrictions on Fast Refresh on Materialized Views With the UNION ALL Operator … Materialized views with the UNION ALL set operator support the REFRESH FAST option if the following conditions … are satisfied: The defining query must have the UNION ALL operator at the top level. The UNION ALL … operator
Hints for Query Transformations → compound query using the UNION ALL set operator. Generally, this transformation occurs only if the … to be transformed into a corresponding query with UNION ALL of individual groupings … to SELECT year, quarter, month, sum(sales) FROM T GROUP BY year, quarter, month UNION ALL SELECT … year, quarter, , sum(sales) FROM T GROUP BY
setAccess() → persistent handle in the xmlihdl union, which has two choices, a generic pointer (void *) or an … ) input handle union XML-READF is the reader function; it reads data from an open source into a … automatically. Parameter IN / OUT Description ctx (IN) XML context ih (IN) input handle union dest (OUT
ORA-36644 XSDUNION07 CONCAT dimension workspace object contains a previously detected leaf dimension. → Cause: Union dimension contains a previously detected leaf dimension.
The OLAP API Metadata Reader Views → MRV_OLAP. The union views have public synonyms with the prefix ALL_OLAP2. More than half of the
Executing Trusted Stored Program Units → policy privileges in force are a union of the invoking user's privileges and the program unit's
GREATEST_LBOUND with Inverse Groups → compartments in the labels and the union of inverse groups in the labels. For example, with inverse
ORA-36630 (XSDUNION00) An empty CONCAT dimension list was specified. → Cause: An empty union DIMENSION list was specified. Action: Specify a valid list of dimensions when defining a union DIMENSION.