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MySQL: Insert record if not exists in table
...names (name, address, tele)
SELECT * FROM (SELECT 'Rupert', 'Somewhere', '022') AS tmp
WHERE NOT EXISTS (
SELECT name FROM table_listnames WHERE name = 'Rupert'
) LIMIT 1;
Query OK, 1 row affected (0.00 sec)
Records: 1 Duplicates: 0 Warnings: 0
SELECT * FROM `table_listnames`;
+----+-------...
Swift: Testing optionals for nil
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edited Jan 13 '19 at 22:36
paulmelnikow
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How can I get the domain name of my site within a Django template?
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edited Feb 6 '17 at 22:34
Southpaw Hare
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How can I show the name of branches in `git log`?
... Android ControlAndroid Control
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How to create an array containing 1…N
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Hugo Elhaj-Lahsen
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answered Oct 26 '15 at 18:03
Niko RuotsalainenNiko Ruotsalainen
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WPF datagrid empty row at bottom
...nk you very much!
– simon
Jul 31 at 22:05
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Hidden features of C
...nd refactoring.
– Andrew Keeton
Jun 22 '09 at 0:23
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Switch statement multiple cases in JavaScript
... default.
– Barney
Apr 24 '15 at 17:22
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Is quoting the value of url() really necessary?
... reasons [..]" Source?
– Semmel
Feb 22 '17 at 14:25
5
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What is the difference between “Rollback…” and “Back Out Submitted Changelist #####” in Perforce P4V
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223
Both of these operations restore a set of files to a previous state and are essentially faster...