In MySQL, can I copy one row to insert into the same table? - Stack Overflow I used Leonard Challis's technique with a few changes: CREATE TEMPORARY TABLE tmptable_1 SELECT * FROM table WHERE primarykey = 1; UPDATE tmptable_1 SET primarykey = NULL; INSERT INTO table SELECT * FROM tmptable_1; DROP ...
UPDATE / EDIT Records In Database Table: PHP & MySQL Security Issue: Make sure not to allow people to explicitly pass random id’s and retrieve and edit/update other’s data. To solve this issue, you can save the id of the logged in user in a session variable and instead of passing id to edit.php we can direc
mysql update from select - same table - Stack Overflow 2012年5月1日 - update table as t1 inner join ( select field_id_46,field_id_47 from table where entry_id = 36) as t2 set t1.field_id_60 = t2.field_id_46, t1.field_id_61 ...
sql - MySQL UPDATE and SELECT from same table in subquery ... 2010年1月29日 - http://www.xaprb.com/blog/2006/06/23/how-to-select-from-an-update-target-in- mysql/ is the best resource I know on that subject.
Update mysql table where select from same table - Stack Overflow 2013年3月10日 - try this. UPDATE fb_messages SET sent = 'Yes' WHERE sent = 'No' ORDER BY msg_id DESC limit 1 ...
SQL UPDATE with sub-query that references the same table in MySQL 2010年11月24日 - I'm trying to update a column's value in a bunch of rows in a table ... Some reference for you http://dev.mysql.com/doc/refman/5.0/en/update.html
mysql - Update row with data from another row in the same table ... 2011年4月7日 - Update row with data from another row in the same table .... Is it possible in mysql to select from the table you're currently updating? – zerkms ...
sql - How to select same table in update statement with MySQL ... 2011年11月3日 - EDIT - after UPDATE with sample data from OP: I assume you know the ID (=11) and want the data to change as illustrated in your updated question...
mysql - UPDATE table based on the same table - Database ... 2013年4月30日 - So far I've tried the following query, but I'm getting errors indicating that MySQL doesn't want to update a table where the table's also being ...
How to select from an update target in MySQL | Xaprb 2006年6月23日 - MySQL doesn't allow referring to a table that's targeted for update in a ... cannot update a table and select from the same table in a subquery.”.
