错误消息指出,在执行SAVEPOINT操作时发生了语法错误或访问违规。具体错误是在尝试设置名为trans2的SAVEPOINT时,由于后面的doe导致语法不正确。 3. 检查SQL语句中SAVEPOINT的正确用法 SAVEPOINT语句用于在事务中设置一个保存点,以便稍后可以回滚到该点。其标准用法如下: sql SAVEPOINT savepoint_name; 其中,savep
SQL consists of commands and functions that are used to manage databases and database objects. SQL can also forcibly implement the rules for data types, expressions, and texts. Therefore, section "SQL Reference" describes data types, expressions, functions, and operators in addition to SQL syntax...
14.2.10.1 The Subquery as Scalar Operand note:For the subquery just shown, ift1were empty, the result would beNULLeven thoughs2isNOT NULL. 14.2.10.2 Comparisons Using Subqueries 14.2.11 UPDATE Syntax 14.3 MySQL Transactional and Locking Statements 14.3.4 SAVEPOINT, ROLLBACK TO SAVEPOINT, and RE...
For details, see COMMIT | END. Setting a Savepoint GaussDB(DWS) creates a new savepoint in the current transaction. For details, see SAVEPOINT. Rollback GaussDB(DWS) rolls back the current transaction to the last committed state. For details, see ROLLBACK.Parent topic: TCL Syntax ...
SQL Literals The terms literal refer to a fixed data value. SQL evaluates four type of literal values numeric, character string, date or time, or Boolean value though SQL database offers a variety of literal values in a SQL program. For example 100, -120, 544.03, -458.25, 3E2, 5E-2 ...
Класс SQLServerSavepoint Класс SQLServerStatement Класс SQLServerXAConnection Класс SQLServerXADataSource Класс SQLServerXAResource Защитаприложений Повышениепроизводительностиинадежнос...
-- 开始事务 START TRANSACTION; -- 插入操作 A INSERT INTO `user` VALUES (1, 'root1', 'root1', 'xxxx@163.com'); -- 创建保留点 updateA SAVEPOINT updateA; -- 插入操作 B INSERT INTO `user` VALUES (2, 'root2', 'root2', 'xxxx@163.com'); -- 回滚到保留点 updateA ROLLBACK TO...
RETURNED_SQLSTATE, RETURNS, REVOKE, RIGHT, ROLE, ROLLBACK, ROLLUP, ROUTINE, ROUTINE_CATALOG, ROUTINE_NAME, ROUTINE_SCHEMA, ROW, ROWS, ROW_COUNT, ROW_NUMBER, SAVEPOINT, SCALE, SCHEMA, SCHEMA_NAME, SCOPE, SCOPE_CATALOGS, SCOPE_NAME, SCOPE_SCHEMA, SCROLL, SEARCH, SECOND, SECTION, SECURITY, ...
Others SAVEPOINT Supported - Others CHECKPOINT Supported - Others SET CONSTRAINTS Supported - Others SET Partially supported The FROM CURRENT syntax is not supported. For details about the policy for GUC parameters, see GUC Parameter Policy. Others SHOW Supported - Others RESET Supported - ...
The trigger cannot use statements that explicitly or implicitly begin or end a transaction, such asSTART TRANSACTION,COMMIT, orROLLBACK. (ROLLBACK to SAVEPOINTis permitted because it does not end a transaction.). See alsoSection 27.9, “Restrictions on Stored Programs”. ...