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OceanBase Database

SQL - V4.4.2

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    DBA_OB_CONCURRENT_LIMIT_SQL

    Last Updated:2026-04-02 06:23:58  Updated
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    Note

    This view is available starting with V4.0.0.

    Purpose

    This view displays information about the concurrent limit rules of the current tenant.

    Columns

    Column
    Type
    Nullable
    Description
    CREATE_TIME TIMESTAMP(6) NO The timestamp when the rule was created.
    MODIFY_TIME TIMESTAMP(6) NO The timestamp when the rule was last modified.
    TENANT_ID NUMBER(38) NO The tenant ID.
    DATABASE_ID NUMBER(38) NO The database ID.
    OUTLINE_ID NUMBER(38) NO The ID of the concurrent limit rule.
    DATABASE_NAME VARCHAR2(128) NO The name of the database.
    OUTLINE_NAME VARCHAR2(128) NO The name of the concurrent limit rule.
    OUTLINE_CONTENT CLOB NO The content of the concurrent limit rule. This column can be empty.
    VISIBLE_SIGNATURE CLOB NO The result of deserializing the signature.
    SQL_TEXT CLOB NO The SQL statement specified in the ON clause when the concurrent limit rule was created.
    CONCURRENT_NUM NUMBER(38) NO The maximum number of concurrent executions allowed for the SQL statement.
    LIMIT_TARGET CLOB NO The SQL statement that is subject to the concurrent limit.

    Sample query

    Query the information about the concurrent limit rules of the current tenant.

    obclient> SELECT * FROM SYS.DBA_OB_CONCURRENT_LIMIT_SQL\G
    

    The query result is as follows:

    *************************** 1. row ***************************
          CREATE_TIME: 28-APR-25 10.36.39.555484 AM
          MODIFY_TIME: 28-APR-25 10.36.39.555484 AM
            TENANT_ID: 1004
          DATABASE_ID: 201006
           OUTLINE_ID: 500026
        DATABASE_NAME: SYS
         OUTLINE_NAME: OL_1
      OUTLINE_CONTENT: /*+BEGIN_OUTLINE_DATA FULL(@"SEL$1" "SYS"."T1"@"SEL$1") OPTIMIZER_FEATURES_ENABLE('4.2.5.1') END_OUTLINE_DATA*/
    VISIBLE_SIGNATURE: SELECT  * FROM t1 WHERE c1 = ? AND c2 = ?
             SQL_TEXT: SELECT /*+max_concurrent(0)*/ * FROM t1 WHERE c1 = 1 AND c2 = ?
       CONCURRENT_NUM: 0
         LIMIT_TARGET: SELECT  * FROM t1 WHERE c1 = 1 AND c2 = ?
    *************************** 2. row ***************************
          CREATE_TIME: 28-APR-25 10.42.20.505246 AM
          MODIFY_TIME: 28-APR-25 10.42.20.505246 AM
            TENANT_ID: 1004
          DATABASE_ID: 201006
           OUTLINE_ID: 500027
        DATABASE_NAME: SYS
         OUTLINE_NAME: OTL
      OUTLINE_CONTENT: /*+max_concurrent(0)*/
    VISIBLE_SIGNATURE:
             SQL_TEXT:
       CONCURRENT_NUM: 0
         LIMIT_TARGET:
    2 rows in set
    

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