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Avoid duplicates in INSERT INTO SELECT query in SQL Server
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204
Using NOT EXISTS:
INSERT INTO TABLE_2
(id, name)
SELECT t1.id,
t1.name
FROM TABLE_...
PostgreSQL database default location on Linux
...| grep -- -D
postgres 1535 0.0 0.1 39768 1584 ? S May17 0:23 /usr/local/pgsql/bin/postgres -D /usr/local/pgsql/data
Note that it is possible, though not very frequent, to run two instances of the same PostgreSQL server (same binaries, different processes) that serve different "clu...
Not showing placeholder for input type=“date” field
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32 Answers
32
Active
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How do you comment out code in PowerShell?
How do you comment out code in PowerShell (1.0 or 2.0)?
8 Answers
8
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What's the advantage of a Java enum versus a class with public static final fields?
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answered Apr 2 '12 at 0:51
casablancacasablanca
64.3k55 gold badges121121 silver badges142142 bronze badges
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How to set environment variable or system property in spring tests?
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127
You can initialize the System property in a static initializer:
@RunWith(SpringJUnit4ClassRunn...
Using a bitmask in C#
... enum:
[Flags]
public enum Names
{
None = 0,
Susan = 1,
Bob = 2,
Karen = 4
}
Then you'd check for a particular name as follows:
Names names = Names.Susan | Names.Bob;
// evaluates to true
bool susanIsIncluded = (names & Names.Susan) != Names.None;
// evaluates to false
bool...
The SQL OVER() clause - when and why is it useful?
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answered Jun 2 '11 at 19:54
Andriy MAndriy M
69.3k1616 gold badges8484 silver badges139139 bronze badges
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Maven skip tests
I am using Maven 2.2.1 and to build my project I used this command
8 Answers
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