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How to get ID of the last updated row in MySQL?
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I've found an answer to this problem :)
SET @update_id := 0;
UPDATE some_table SET column_name = 'value', id = (SELECT @update_id := id)
WHERE some_other_column = 'blah' LIMIT 1;
SELECT @update_id;
EDIT by aefxx
This technique can be further expanded to retrieve the ID of every row affected by...
Adding :default => true to boolean in existing Rails column
...ribute == nil ? true : false)) }
Update the migration that created this table, so any future builds of the DB will get it right from the onset. Also run the same process on any deployed-instances of the DB.
If using the "new db migration" method, you can do the update of existing nil-values i...
How to create a unique index on a NULL column?
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create unique index UIX on MyTable (Column1) where Column1 is not null
– Jørn Schou-Rode
Dec 2 '10 at 14:54
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PostgreSQL - Rename database
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The above suggestions make me think it's better to keep table names restricted to just lowercase letters and underscore if possible!
– Aswin Sanakan
Feb 17 at 6:52
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What's the easiest way to escape HTML in Python?
...with all non-ascii unicode chars encoded using the xml character reference table.
– nosklo
Jun 23 '10 at 3:48
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How to Delete using INNER JOIN with SQL Server?
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You need to specify what table you are deleting from, here is a version with an alias:
DELETE w
FROM WorkRecord2 w
INNER JOIN Employee e
ON EmployeeRun=EmployeeNo
WHERE Company = '1' AND Date = '2013-05-06'
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When should I use a composite index?
For example, I have a homes table:
9 Answers
9
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SQL Server String or binary data would be truncated
...oject. I am getting the following error when I try to insert data from one table into another table (SQL Server 2005):
20 A...
How to delete a certain row from mysql table with same column values?
I have a problem with my queries in MySQL. My table has 4 columns and it looks something like this:
6 Answers
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Storyboard warning: prototype table cells must have reuse identifiers
I am getting this warning from storyboard - prototype table cells must have reuse identifiers.
11 Answers
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