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Use of “global” keyword in Python
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371
The keyword global is only useful to change or create global variables in a local context, alt...
Real life example, when to use OUTER / CROSS APPLY in SQL
...xec_query_stats AS qs
CROSS APPLY sys.dm_exec_query_plan(qs.plan_handle)
3) Reusing a column alias
SELECT number,
doubled_number,
doubled_number_plus_one
FROM master..spt_values
CROSS APPLY (SELECT 2 * CAST(number AS BIGINT)) CA1(doubled_number)
CROSS APPLY (SELECT doubled_number...
How to find out which view is focused?
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113
Call getCurrentFocus() on the Activity.
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Format string, integer with leading zeros
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Use the format string "img_%03d.jpg" to get decimal numbers with three digits and leading zeros.
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Debugging “Element is not clickable at point” error
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333
This is caused by following 3 types:
1.The element is not visible to click.
Use Actions or J...
Using app.configure in express
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edited Sep 29 '15 at 8:36
answered Sep 5 '13 at 13:12
Ja...
How can I use getSystemService in a non-activity class (LocationManager)?
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edited Aug 28 '15 at 19:30
Krzysiek
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answered F...
Git rebase merge conflict cannot continue
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230
There are a couple situations where I've seen rebase get stuck. One is if the changes become nu...
How big is too big for a PostgreSQL table?
...oblem will be the same on any other RDMS that I know of. If you only need 3 months worth of data design in a process to prune off the data you don't need any more. That way you will have a consistent volume of data on the table. Your lucky you know how much data will exist, test it for your volume...