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Heroku “psql: FATAL: remaining connection slots are reserved for non-replication superuser connectio
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Also a common problem is something like that client side app crashing and leaving connections open and then opening new ones when it restarts. If this kind of thing happens a lot then you'll run out of connections. Or the app is j...
Setting Short Value Java
...ableId(Short tableId) . Now when I try to write setTableId(100) it gives compile time error. How can I set the short value without declaring another short variable?
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Escaping keyword-like column names in Postgres
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@djjeck: stackoverflow.com/questions/1992314/…
– NPE
Dec 11 '12 at 19:31
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How do I get the user agent with Flask?
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What is javax.inject.Named annotation supposed to be used for?
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Nice article about @Named and @Qualifier java.dzone.com/articles/java-ee6-cdi-named-components
– xmedeko
Sep 19 '12 at 9:36
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TimeStamp on file name using PowerShell
...e\$filename $(get-date -f yyyy-MM-dd)$ext"
And if the path happens to be coming from the output of Get-ChildItem:
Get-ChildItem *.zip | Foreach {
"$($_.DirectoryName)\$($_.BaseName) $(get-date -f yyyy-MM-dd)$($_.extension)"}
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SQL selecting rows by most recent date
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Pandas get topmost n records within each group
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github.com/pydata/pandas/pull/5510 was just merged in; will be in 0.13, new method to do exactly this called cumcount (number the records in each group)
– Jeff
Nov 19 '13 at 11:10
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What does value & 0xff do in Java?
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@DmitryMinkovsky - The hex bit pattern fe in 8-bit, two's complement corresponds to the decimal value −2. To preserve the value, Integer.valueOf(byte) would need to produce ff ff ff fe (−2 in 32-bit, two's complement), not 00 00 00 fe (decimal value 254). This transformation (fr...