SQL将行复制到同一表中的另一行

Question

I need to copy all values from row1 to row2 where now all records contains "no tiltle"

I already tried:

UPDATE `table` SET name=@tmp:=name,name=meta_title,meta_title=@tmp WHERE name='No Title';
UPDATE `bb_product_description` SET name = meta_title WHERE meta_title="No  Title"

but is just copy "No title to all"

Please help me

Answer 1

You could use a standard INSERT ... SELECT for this like so:

INSERT INTO table SELECT * FROM table WHERE meta_title='No Title';

Or be more selective (no pun intended)...

INSERT INTO table (name, col2, col3...) SELECT meta_title, col2, col3... FROM table WHERE meta_title = 'No Title'

Which, if I'm understanding your question correctly, should get you where you want to go.

Or, you could fix your UPDATE statement from above:

UPDATE `bb_product_description` SET `name` = `meta_title` WHERE `meta_title` = 'No Title'

Note I removed the extra space in 'No Title' and changed from double- to single-quote because safety.