它可以让你避免多个INSERT、UPDATE和DELETE DML语句。 MERGEis a deterministic statement. That is, you cannot update the same row of the target table multiple times in the sameMERGEstatement. 合并是一个决定性的声明。也就是说,你不能更新相同的目标表行多次在同一MERGE语句。 Note: Oracle Database does...
(i).owner, object_name = l_tab(i).object_name, object_type = l_tab(i).object_type WHERE object_id = l_tab(i).object_id; IF SQL%ROWCOUNT = 0 THEN INSERT INTO dest_tab (object_id, owner, object_name, object_type) VALUES (l_tab(i).object_id, l_tab(i).owner, l_tab(i)...
//...syntax of MERGE statement...// //you can use any other name in place of target MERGE target_table_name AS TARGET //you can use any other name in place of source USING source_table_name AS SOURCE ON condition (for matching source and target table) WHEN MATCHED (another condition...
In previous releases of Oracle Database, when you created an Oracle Virtual Private Database policy on an application that included theMERGEINTOstatement, theMERGEINTOstatement would be prevented with anORA-28132: Merge into syntax does not support security policieserror, due to the presence of the...
Syntax merge::= Semantics INTO Clause Use theINTOclause to specify the target table you are updating or inserting into. USING Clause Use theUSINGclause to specify the source of the data to be updated or inserted. The source can be a table, view, or the result of a subquery. ...
The following illustrates the syntax of the OracleMERGEstatement: MERGEINTOtarget_tableUSINGsource_tableONsearch_conditionWHENMATCHEDTHENUPDATESETcol1 = value1, col2 = value2,...WHERE<update_condition> [DELETEWHERE<delete_condition>]WHENNOTMATCHEDTHENINSERT(col1,col2,...)values(value1,value2,.....
Oracle 11g Release 2 documentationonMERGE Firebird 2.1 documentationonMERGE DB2 v9 MERGE statement SQL Server 2008 documentation H2 (1.2) SQL Syntax page <---不华丽的分界线---> 同时也找了 http://www.oracle-base.com/articles/10g/MergeEnhancements10g.php MERGE Statement Enhancements in Oracle Data...
Machine Learning Services (in database) Queries, stored procedures, views, functions, triggers (T-SQL) Replication, Change Tracking, Change Data Capture 102 and incorrect syntax error with peer-to-peer replication 1205 error when you configure transactional replication 20011 error t...
SQL 语法普通租户(Oracle 模式) 函数单行函数JSON 函数修改JSON 文本的函数 JSON_MERGEPATCH JSON_MERGEPATCH 更新时间:2024-10-21 19:20:06 编辑 分享 描述 JSON_MERGEPATCH() 函数用于更新 target_json 数据的特定部分,根据 RFC 7396 的标准对两个或多个 JSON 文档执行合并返回合并结果,而不保留具有重复键...
In previous releases of Oracle Database, when you created an Oracle Virtual Private Database policy on an application that included theMERGEINTOstatement, theMERGEINTOstatement would be prevented with anORA-28132: Merge into syntax does not support security policieserror, due to the presence of the...