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Advanced JavaScript: Why is this function wrapped in parentheses? [duplicate]
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clear javascript console in Google Chrome
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edited Nov 7 '12 at 20:04
Paul Irish
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answe...
Does MySQL index foreign key columns automatically?
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Nae
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answered Nov 20 '08 at 4:33
Grant LimbergGrant Lim...
SQLite in Android How to update a specific row
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answered Mar 21 '12 at 4:18
AkhilAkhil
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How do I list the functions defined in my shell?
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edited Apr 9 '18 at 19:49
Nick T
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Query to count the number of tables I have in MySQL
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edited Dec 4 '17 at 7:28
Ajay2707
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Best way to test if a row exists in a MySQL table
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472
You could also try EXISTS:
SELECT EXISTS(SELECT * FROM table1 WHERE ...)
and per the docume...
Install Node.js on Ubuntu
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474
Simply follow the instructions given here:
Example install:
sudo apt-get install python-s...
What is the difference between JOIN and UNION?
...ple of UNION:
mysql> SELECT 23 AS bah
-> UNION
-> SELECT 45 AS bah;
+-----+
| bah |
+-----+
| 23 |
| 45 |
+-----+
2 rows in set (0.00 sec)
similary trivial example of JOIN:
mysql> SELECT * FROM
-> (SELECT 23 AS bah) AS foo
-> JOIN
-> (SELECT 45 AS ...