Re: Insert keys from 1 table into 2 others.
Posted by:
Rick James
Date: March 16, 2012 07:00PM
Did you really want all rows to say 'default'?
Assuming Newtable is really a "normalization" of Value, then start over on Newtable, this time including
UNIQUE(Value)
Then...
INSERT IGNORE INTO Newtable
SELECT DISTINCT Value FROM TableA;
UPDATE TableA JOIN Newtable ON TableA.Value = Newtable.Value
SET TableA.new_id = Newtable.id;
INSERT IGNORE INTO Newtable
SELECT DISTINCT Value FROM TableB;
UPDATE TableB JOIN Newtable ON TableB.Value = Newtable.Value
SET TableB.new_id = Newtable.id;
"IGNORE" Is not necessary on the first one, but it makes the SQL consistent.
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Re: Insert keys from 1 table into 2 others.
March 16, 2012 07:00PM
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