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MySQL - UPDATE multiple rows with different values in one query
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UPDATE Table1 SET col1= col2 FROM (SELECT col2, col3 FROM Table2) as newTbl WHERE col4= col3
Here col4 & col1 are in Table1. col2 & col3 are in Table2 I Am trying to update each col1 where col4 = col3 different value for each row
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Java Serializable Object to Byte Array
...tegrate .jar file by clicking:
FileName -> Open Medule Settings -> Select your module -> Dependencies -> Add Jar file and you are done.
Hope this helps.
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Do I need to create indexes on foreign keys on Oracle?
...ance of an index may be unacceptable.
Most salient here would seem to be selectivity: if the values in the index would be highly duplicated then it may give better performance to drop the index (if possible) and allow a table scan.
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How do I wrap text in a pre tag?
...de wont get word-wrapped in the middle of a path or something.
Easier to select text range in a text area too if you want to copy to clipboard.
The following is a php excerpt so if your not in php then the way you pack the html special chars will vary.
<textarea style="font-family:monospace;"...
Unit Testing bash scripts
...e relatively low coding overhead, unlimited assertion nesting and flexible selection of assertions to verify.
I made a presentation comparing it to BeakerLib - a framework used by some at Red Hat.
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How to get the list of properties of a class?
... i suppose this is much better pObject.GetType().GetProperties().Select(p=>p.Name)
– Disappointed
Jun 9 '16 at 16:18
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Postgis installation: type “geometry” does not exist
...ing following code
CREATE EXTENSION postgis;
In detail,
open pgAdmin
select (click) your database
click "SQL" icon on the bar
run "CREATE EXTENSION postgis;" code
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How to query MongoDB with “like”?
...d all entries for name? or the wildcard for * in SQL? Something that does select name from users; which just lists all the users?
– anon58192932
Oct 18 '17 at 19:15
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Extract subset of key-value pairs from Python dictionary object?
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This answer uses a dictionary comprehension similar to the selected answer, but will not except on a missing item.
python 2 version:
{k:v for k, v in bigDict.iteritems() if k in ('l', 'm', 'n')}
python 3 version:
{k:v for k, v in bigDict.items() if k in ('l', 'm', 'n')}
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django import error - No module named core.management
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You are probably using virtualenvwrapper. Don't forget to select your enviroment by running:
$ workon env_name
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