PREPARE

PREPARE 语句为服务器端预处理语句提供 SQL 接口。

语法图

PreparedStmt
PREPAREIdentifierFROMPrepareSQL
PrepareSQL
stringLitUserVariable

示例

PREPARE mystmt FROM 'SELECT ? as num FROM DUAL';
Query OK, 0 rows affected (0.00 sec)
SET @number = 5;
Query OK, 0 rows affected (0.00 sec)
EXECUTE mystmt USING @number;
+------+ | num | +------+ | 5 | +------+ 1 row in set (0.00 sec)
DEALLOCATE PREPARE mystmt;
Query OK, 0 rows affected (0.00 sec)

MySQL 兼容性

PREPARE 语句与 MySQL 完全兼容。如发现任何兼容性差异,请尝试 TiDB 支持资源

另请参阅

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