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What does “exec sp_reset_connection” mean in Sql Server Profiler? [duplicate]
...llocated memory
owned by the connection
Clears any work or temporary
tables that are created by the
connection
Kills all global cursors owned by the
connection
Closes any open SQL-XML handles that are open
Deletes any open SQL-XML related work tables
Closes all system tables
Clo...
PostgreSQL: How to change PostgreSQL user password?
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The user is an object, not a string. Compare with ALTER TABLE "table_name" or even SELECT * FROM "table_name". You couldn't use single quotes in these contexts with tables, and it's the same with users/roles.
– P Daddy
Apr 13 '16 at 5:11
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Updating Bootstrap to version 3 - what do I have to do?
...d result. Do not think about just span12, think about all span*, all navs, tables and more more, think about a heavy deep use of bootstrap
– albanx
Nov 15 '13 at 9:35
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OpenCV C++/Obj-C: Detecting a sheet of paper / Square Detection
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f = Import["http://thwartedglamour.files.wordpress.com/2010/06/my-coffee-table-1-sa.jpg"]
f = ImageResize[f, ImageDimensions[f][[1]]/4]
g = MedianFilter[ColorConvert[f, "Grayscale"], 2]
h = DeleteSmallComponents[Thinning[
Binarize[ImageSubtract[Dilation[g, 1], Erosion[g, 1]]]]]
convexvert = C...
How to execute a MySQL command from a shell script?
...h shell scripting and SQL. If you need to use them in SQL for specifying a table or database name you'll need to escape them in the shell script like so:
mysql -p=password -u "root" -Bse "CREATE DATABASE \`${1}_database\`;
CREATE USER '$1'@'%' IDENTIFIED BY '$2';
GRANT ALL PRIVILEGES ON `${1}_datab...
How to select the row with the maximum value in each group
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Here's a data.table solution:
require(data.table) ## 1.9.2
group <- as.data.table(group)
If you want to keep all the entries corresponding to max values of pt within each group:
group[group[, .I[pt == max(pt)], by=Subject]$V1]
# ...
Select where count of one field is greater than one
...e result comparison.
Taking the query at face value:
SELECT *
FROM db.table
HAVING COUNT(someField) > 1
Ideally, there should be a GROUP BY defined for proper valuation in the HAVING clause, but MySQL does allow hidden columns from the GROUP BY...
Is this in preparation for a unique cons...
Convert xlsx to csv in Linux with command line
...Errno 13] Permission denied: '/usr/local/lib/python2.7/dist-packages/prettytable-0.7.2-py2.7.egg/EGG-INFO/top_level.txt'). Now that I think about it, I got the same error with csvkit.
– user2105469
May 28 '14 at 17:24
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Output array to CSV in Ruby
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I pulled in a CSV file using CSV.table, did some manipulations, got rid of some columns, and now I want to spool the resulting Array of Hashes out again as CSV (really tab-delimited). How to? gist.github.com/4647196
– tamouse
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Split value from one field to two
I've got a table field membername which contains both the last name and the first name of users. Is it possible to split those into 2 fields memberfirst , memberlast ?
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