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SQL Server - Create a copy of a database table and place it in the same database?
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216
Use SELECT ... INTO:
SELECT *
INTO ABC_1
FROM ABC;
This will create a new table ABC_1 that ha...
Forward an invocation of a variadic function in C
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answered Sep 29 '08 at 20:56
Adam RosenfieldAdam Rosenfield
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How do I remove duplicate items from an array in Perl?
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168
You can do something like this as demonstrated in perlfaq4:
sub uniq {
my %seen;
grep ...
PHP convert XML to JSON
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Ali Khaki
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answered Oct 15 '13 at 21:36
Antonio MaxAntonio Ma...
How can I time a code segment for testing performance with Pythons timeit?
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Stevoisiak
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answered May 19 '10 at 14:32
joaquinjoaquin
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How to check an Android device is HDPI screen or MDPI screen?
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6 Answers
6
Active
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Get the first element of each tuple in a list in Python [duplicate]
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196
Use a list comprehension:
res_list = [x[0] for x in rows]
Below is a demonstration:
>>...
Can PostgreSQL index array columns?
..."Column1" @> ARRAY[20];
Result:
Bitmap Heap Scan on "Test" (cost=4.26..8.27 rows=1 width=32) (actual time=0.014..0.015 rows=2 loops=1)
Recheck Cond: ("Column1" @> '{20}'::integer[])
-> Bitmap Index Scan on idx_test (cost=0.00..4.26 rows=1 width=0) (actual time=0.009..0.009 rows=2 ...