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jQuery: checking if the value of a field is null (empty)
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31
The value of a field can not be null, it's always a string value. this isn't entirely true. I've got a select containing no options. When I...
grepping using the “|” alternative operator
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136
You need to escape the |. The following should do the job.
grep "gene\|exon" AT5G60410.gff
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How to get min/max of two integers in Postgres/SQL?
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306
Have a look at GREATEST and LEAST.
UPDATE my_table
SET my_column = GREATEST(my_column - 10, 0...
C++ Modules - why were they removed from C++0x? Will they be back later on?
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James McNellisJames McNellis
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How do I remove a project configuration in Visual Studio 2008?
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Matthias
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answered Jan 29 '09 at 15:14
TimboTimbo
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Reference assignment operator in PHP, =&
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123
It's not deprecated and is unlikely to be. It's the standard way to, for example, make part of o...
Difference between float and decimal data type
...mysql> insert into numbers values (100, 100);
mysql> select @a := (a/3), @b := (b/3), @a * 3, @b * 3 from numbers \G
*************************** 1. row ***************************
@a := (a/3): 33.333333333
@b := (b/3): 33.333333333333
@a + @a + @a: 99.999999999000000000000000000000
@b + @b...
How to divide flask app into multiple py files?
...stikpixelistik
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GIT merge error “commit is not possible because you have unmerged files”
...tenjonnystoten
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Which data type for latitude and longitude?
...c if you need absolute precision. 2 bytes for each group of 4 digits, plus 3 - 8 bytes overhead.
Read the fine manual about numeric types and geometric types.
The geometry and geography data types are provided by the additional module PostGIS and occupy one column in your table. Each occupies 32...