Getting Content after MySQL Insert
Inserting rows into a MySQL table is straightforward. However, retrieving the values inserted in the same query can be a challenge. This question explores the possibility of accomplishing both tasks in a single query.
The question poses a scenario where a row from the 'item_bug' table needs to be inserted into the 'items' table, and the inserted data, including the ID, needs to be retrieved. The proposed solution is to insert the row using an INSERT statement and then retrieve it using a subsequent SELECT statement.
However, the question seeks a more efficient solution by performing both tasks in a single query. To achieve this, the answer suggests using the 'LAST_INSERT_ID()' function. This function returns the ID of the last row inserted into the table. By combining the insert and select statements, it becomes possible to retrieve the inserted data without needing a separate query.
The suggested query would look like this:
INSERT INTO `items` (`item`, `number`, `state`) (SELECT '3', `number`, `state` FROM `item_bug` WHERE `id`='3'); SELECT * FROM `items` WHERE `id`= LAST_INSERT_ID();
By executing this query, the row from 'item_bug' is inserted into 'items,' and the inserted data, including the ID, is immediately retrieved and returned as the result of the query. This solution eliminates the need for a separate query to retrieve the inserted data, making it a more efficient and elegant approach.
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