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How to make an element in XML schema optional?
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191
Try this
<xs:element name="description" type="xs:string" minOccurs="0" maxOccurs="1" />...
How do I find the next commit in git? (child/children of ref)
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14 Answers
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How to concatenate strings of a string field in a PostgreSQL 'group by' query?
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How do you test that a Python function throws an exception?
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13 Answers
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Best practices for circular shift (rotate) operations in C++
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16 Answers
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INSERT with SELECT
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INSERT INTO courses (name, location, gid)
SELECT name, location, 1
FROM courses
WHERE cid = 2
You can put a constant of the same type as gid in its place, not just 1, of course. And, I just made up the cid value.
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How to set layout_weight attribute dynamically from code?
...tParams(
LayoutParams.MATCH_PARENT,
LayoutParams.MATCH_PARENT,
1.0f
);
YOUR_VIEW.setLayoutParams(param);
The last parameter is the weight.
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Find maximum value of a column and return the corresponding row values using Pandas
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11 Answers
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MySQL join with where clause
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291
You need to put it in the join clause, not the where:
SELECT *
FROM categories
LEFT JOIN user_c...