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Select rows which are not present in other table
... BrandstetterErwin Brandstetter
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What are the parameters sent to .fail in jQuery?
...XHR.error(), and jqXHR.complete() callbacks will be deprecated in jQuery 1.8. To prepare your code for their eventual removal, use jqXHR.done(), jqXHR.fail(), and jqXHR.always() instead.
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How can I export the schema of a database in PostgreSQL?
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DataContractSerializer doesn't call my constructor?
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edited Feb 14 '14 at 10:08
Carsten
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Loading existing .html file with android WebView
...ew.loadUrl("file:///android_res/raw/myfile.html"); works only on API level 8. But it doesn't matter now.
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Unresolved specs during Gem::Specification.reset:
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edited Oct 17 '17 at 3:58
EricC
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How can I determine whether a Java class is abstract by reflection
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sethseth
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What does the “>” (greater-than sign) CSS selector mean?
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Numbering rows within groups in a data frame
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Use ave, ddply, dplyr or data.table:
df$num <- ave(df$val, df$cat, FUN = seq_along)
or:
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Find difference between timestamps in seconds in PostgreSQL
I have a table in PostgreSQL 8.3 with 2 timestamp columns. I would like to get the difference between these timestamps in seconds. Could you please help me how to get this done?
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