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Warning: Null value is eliminated by an aggregate or other SET operation in Aqua Data Studio

...t the solution specifically for the "opencases" column be simpler as just "select count(1)..." (or "count" of any other literal)? The Where clause already specifies "and closed is NULL" so no need for summing a case statement in this instance. Also, I've heard (aeons ago) that "count(*)" is not as e...
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Combining INSERT INTO and WITH/CTE

... You need to put the CTE first and then combine the INSERT INTO with your select statement. Also, the "AS" keyword following the CTE's name is not optional: WITH tab AS ( bla bla ) INSERT INTO dbo.prf_BatchItemAdditionalAPartyNos ( BatchID, AccountNo, APartyNo, SourceRowID ) SELECT * FROM ta...
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When restoring a backup, how do I disconnect all active connections?

... the steps (via: Tim Leung) Right-click the server in Object Explorer and select 'Activity Monitor'. When this opens, expand the Processes group. Now use the drop-down to filter the results by database name. Kill off the server connections by selecting the right-click 'Kill Process' option. ...
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Detecting value change of input[type=text] in jQuery

... $("#myTextBox").on("change paste keyup select", function() { alert($(this).val()); }); select for browser suggestion share | improve this answer ...
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Pandas selecting by label sometimes return Series, sometimes returns DataFrame

In Pandas, when I select a label that only has one entry in the index I get back a Series, but when I select an entry that has more then one entry I get back a data frame. ...
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PostgreSQL query to list all table names?

... What bout this query (based on the description from manual)? SELECT table_name FROM information_schema.tables WHERE table_schema='public' AND table_type='BASE TABLE'; share | im...
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Debugging App When Launched by Push Notification

...opdown. (⌘+<) Than choose your product - 'Run MyApp.app' on the left. Select 'Info' tab on the right. And finally choose "Wait for MyApp.app to launch" option. More here in "Customize Executables in the Scheme Editor" section. EDIT: In case you miss logs in GDB, see Louis Gerbarg's comment t...
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Select rows of a matrix that meet a condition

...20, ncol = 4) colnames(m) <- letters[1:4] The following command will select the first row of the matrix above. subset(m, m[,4] == 16) And this will select the last three. subset(m, m[,4] > 17) The result will be a matrix in both cases. If you want to use column names to select columns...
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How to get a list of user accounts using the command line in MySQL?

... Use this query: SELECT User FROM mysql.user; Which will output a table like this: +-------+ | User | +-------+ | root | +-------+ | user2 | +-------+ As Matthew Scharley points out in the comments on this answer, you can group by the ...
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How to specify a editor to open crontab file? “export EDITOR=vi” does not work

... 13.04 installation) try: There are a number of alternative ways: 1) Run select-editor select-editor 2) Manually edit the file: ~/.selected_editor specifying your preferred editor. With this option you can specify editor parameters. # Generated by /usr/bin/select-editor SELECTED_EDITOR="/usr/...