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Evaluate if list is empty JSTL
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245
empty is an operator:
The empty operator is a prefix operation that can be used to determin...
How do I find out which settings.xml file maven is using
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Use the Maven debug option, ie mvn -X :
Apache Maven 3.0.3 (r1075438; 2011-02-28 18:31:09+0100)
Maven home: /usr/java/apache-maven-3.0.3
Java version: 1.6.0_12, vendor: Sun Microsystems Inc.
Java home: /usr/java/jdk1.6.0_12/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "linu...
How to add new item to hash
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pjumblepjumble
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Query for array elements inside JSON type
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Query for element of array in JSON column
jsonb in Postgres 9.4+
Use the equivalent jsonb_array_elements().
Better yet, use the new "contains" operator @> (best in combination with a matching GIN index on the expression data->'objects'):
CREATE INDEX reports_data_gin_idx ON report...
Capistrano error tar: This does not look like a tar archive
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answered May 29 '14 at 15:09
kubbingkubbing
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MongoDB inserts float when trying to insert integer
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4 Answers
4
Active
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DbArithmeticExpression arguments must have a numeric common type
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247
Arithmetic with DateTime is not supported in Entity Framework 6 and earlier. You have to use Db...
How do I determine which iOS SDK I have?
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154
If you type this:
$> xcodebuild -showsdks
it gives something like this:
$> OS X SDKs:
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Angularjs Template Default Value if Binding Null / Undefined (With Filter)
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edited Mar 11 '14 at 21:41
0xcaff
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answ...
Adding 'serial' to existing column in Postgres
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134
Look at the following commands (especially the commented block).
DROP TABLE foo;
DROP TABLE bar...