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Executing LCRs → There are separate EXECUTE member procedures for row LCRs and DDL LCRs. These member procedures … row LCRs and DDL LCRs: Executing Row LCRs Executing DDL LCRs
Constructing and Enqueuing LCRs → Use the following LCR constructors to create LCRs: To create a row LCR that contains a change to a … process, because the apply process will be applying persistent LCRs, not captured LCRs. Also, ensure … LCR constructors Create and enqueue LCRs using the construct_row_lcr procedure created in Step 5. In
Executing Row LCRs → The EXECUTE member procedure for row LCRs is a subprogram of the LCR$_ROW_RECORD type. When the … LCRs\" \"Managing a DML Handler\" for an example of a DML handler that runs the EXECUTE member … procedure on row LCRs Oracle Database PL/SQL Packages and Types Reference for more information about row … LCRs and
Requirements for Managing LCRs → This section describes requirements for creating or modifying logical change records (LCRs). You … an apply handler or a rule-based transformation. You can modify captured LCRs or persistent LCRs … -constructed row LCR. However, you can use certain techniques to construct LCRs that contain LOB information … .
Executing DDL LCRs → The EXECUTE member procedure for DDL LCRs is a subprogram of the LCR$_DDL_RECORD type. When the … would be run for the LCR are not run. The EXECUTE member procedure for DDL LCRs can be invoked only … in an apply handler for an apply process. All applied DDL LCRs commit automatically. Therefore, if a … automatically. See Also:
Logical Change Records (LCRs) → LCRs: row LCRs and DDL LCRs. A capture process, synchronous capture, or an application can capture … LCRs. You can capture the following types of LCRs with Oracle Streams: A captured LCR is an LCR that … the DBMS_APPLY_ADM package There are no differences between persistent LCRs that
C XML Schema for LCRs → Go to main content 47/51 C XML Schema for LCRs The XML schema described in this appendix defines … for LCRs. The namespace for this schema is the following: http://xmlns.oracle.com/streams/schemas … Definition of the XML Schema for LCRs The following is the XML schema definition for LCRs: '
Track LCRs Through a Stream → $STREAMS_MESSAGE_TRACKING view to track the LCRs through the stream and see how they were processed by … each Oracle Streams client. LCR tracking is useful if LCRs are not being applied as expected by one … or more apply processes. When this happens, you can use LCR tracking to determine where the LCRs … message_tracking_frequency
Tracking LCRs Through a Stream → capture database changes implicitly. An application or user can construct and enqueue LCRs to … $STREAMS_MESSAGE_TRACKING view to track the LCRs through the stream and see how they were processed by each Oracle Streams … client. LCR tracking is useful if LCRs are not being applied as expected by one or more apply … processes.
Managing LCRs Containing LOB Columns → LOB data types can be present in row LCRs captured by a capture process, but these data types are … represented by other data types. LOB data types cannot be present in row LCRs captured by synchronous … captures. Certain LOB data types cannot be present in row LCRs constructed by users. Table 11-1 … LCRs. Table
Apply Processing Options for LCRs → An apply process is a flexible mechanism for processing the logical change records (LCRs) in a … LCRs, not non-LCR user messages. This section discusses the LCR processing options available to you … with an apply process. Captured LCRs and Persistent LCRs A single apply process can apply messages from … contains
11 Managing Logical Change Records (LCRs) → This chapter contains instructions for managing logical change records (LCRs) in an Oracle Streams … replication environment. This chapter contains these topics: Requirements for Managing LCRs … Constructing and Enqueuing LCRs Executing LCRs Managing LCRs Containing LOB Columns Managing LCRs
Requirements for Constructing and Processing LCRs Containing LOB Columns → If your environment produces row LCRs that contain LOB columns, then you must meet the requirements … in the following sections when you construct or process these LCRs: Requirements for Constructing … and Processing LCRs Without LOB Assembly Requirements for Apply Handler Processing of LCRs with LOB … Assembly
LOB Assembly and Custom Apply of LCRs Containing LOB Columns → a change to a row that includes one or more LOB columns can result in multiple row LCRs. An apply … process that does not send row LCRs that contain LOB columns to an apply handler can apply these row … LCRs directly. However, prior to Oracle Database 10 g Release 2, custom processing of row LCRs that … LCRs
Example Script for Constructing and Enqueuing LCRs Containing LOBs → LCRs containing LOBs. This example assumes that you have prepared your database for Oracle Streams … Necessary Privileges on the Tables Create a PL/SQL Procedure to Enqueue LCRs Containing LOBs Create the … with_blob TO strmadmin; COMMIT; /* Step 8 Create a PL/SQL Procedure to Enqueue LCRs Containing LOBs
Apply Process Behavior for Direct Apply of LCRs Containing LOBs → An apply process behaves in the following ways when it applies an LCR that contains a LOB column directly (without the use of an apply handler): If an LCR whose command type is INSERT or UPDATE has a new LOB that contains data, and the lob_information is not DBMS_LCR.LOB_CHUNK or DBMS_LCR.LAST_LOB_CHUNK, then the data is applied. If an LCR whose command type is INSERT or UPDATE has a new LOB that
Managing LCRs Containing LONG or LONG RAW Columns → LONG and LONG RAW data types all can be present in row LCRs captured by a capture process, but … these data types are represented by the following data types in row LCRs. LONG data type is represented … as VARCHAR2 data type in row LCRs. LONG RAW data type is represented as RAW data type in row LCRs. A … LCRs.
Creating an ANYDATA Queue to Stage LCRs → In an Oracle Streams replication environment, ANYDATA queues stage LCRs that encapsulate captured
Excluding Extra Attributes from Implicitly LCRs → To exclude an extra attribute from the LCRs captured by a capture process or synchronous capture
Creating an Apply Process for Captured LCRs → : Creates an apply process named strm01_apply that applies captured LCRs to the local database. The apply … system generated. Creates one rule that evaluates to TRUE for row LCRs that contain the results of … apply process. Specifies that the LCRs applied by the apply process originate at the dbs1.example.com