MySQL在其他查詢中使用prepare語句結果

Question

我想使用prepare語句結果填充我的臨時表。 可能嗎？ （如果這很重要，我嘗試在存儲過程中進行。）

我想是這樣的：

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

首先創建臨時表

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;