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...
The following illustrates the syntax of the Oracle MERGE statement: MERGE INTO target_table USING source_table ON search_condition WHEN MATCHED THEN UPDATE SET col1 = value1, col2 = value2,... WHERE <update_condition> [DELETE WHERE <delete_condition>] WHEN NOT MATCHED THEN INSERT (col1,co...
Use theONclause to specify the condition upon which theMERGEoperation either updates or inserts. For each row in the target table for which the search condition is true, Oracle Database updates the row with corresponding data from the source table. If the condition is not true for any rows,...
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...
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 REPLACE [INTO] <Table Name> (<Column List>) VALUES v(<Values List>) REPLACE [INTO] <Table Name> SET <Assignment List: ColumnName = VALUE...> REPLACE [INTO] <Table Name> (<Column List>) SELECT ... INSERT … ON DUPLICATE KEY UPDATE The ON DUPLICATE KEY UPD...
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...
在早期版本的Oracle数据库中,当您在包含该MERGEINTO语句的应用程序上创建Oracle虚拟专用数据库策略时,由于存在虚拟专用数据库策略,该MERGEINTO语句将被阻止并显示ORA-28132: Merge into syntax does not support security policies错误。从Oracle Database 11g第2版???(11.2.0.2)开始,您可以在包含MERGEINTO操作的应用...
Syntax MERGE INTO target_table USING source_table [ [ AS ] alias ] ON match_condition [ WHEN MATCHED THEN { UPDATE SET col_name = { expr } [,...] | DELETE } WHEN NOT MATCHED THEN INSERT [ ( col_name [,...] ) ] VALUES ( { expr } [, ...] ) | REMOVE DUPLICATES ] Par...
Oracle11g√ Sqlserver2017√ PostgreSQL√ MariaDB√ 达梦√ 人大金仓√ TiDB√ kingbase8√ 微服务解决方案 1、服务注册和发现 Nacos √ 2、统一配置中心 Nacos √ 3、路由网关 gateway(三种加载方式) √ 4、分布式 http feign √ 5、熔断降级限流 Sentinel √ ...