MySQL在其他查询中使用prepare语句结果

Question

我想使用prepare语句结果填充我的临时表。 可能吗？ （如果这很重要，我尝试在存储过程中进行。）

我想是这样的：

SET @table_name = 'my_table';
SET @query = CONCAT('SELECT * FROM ', @table_name);
PREPARE statement FROM @query;
INSERT INTO tmp_table FROM statement;
DEALLOCATE PREPARE statement;

Answer 1

首先创建临时表

SET @table_name = 'my_table';
SET @query = CONCAT('CREATE TEMPORARY TABLE tmp_table AS SELECT * FROM ', @table_name);
PREPARE statement FROM @query;
EXECUTE statement ;
DEALLOCATE PREPARE statement;