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IntelliJ IDEA generating serialVersionUID
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595
I am not sure if you have an old version of IntelliJ IDEA, but if I go to menu File → Settin...
Oracle Differences between NVL and Coalesce
...CT BY
level <= 10000
)
This runs for almost 0.5 seconds, since it generates SYS_GUID()'s, despite 1 being not a NULL.
SELECT SUM(val)
FROM (
SELECT COALESCE(1, LENGTH(RAWTOHEX(SYS_GUID()))) AS val
FROM dual
CONNECT BY
leve...
When do I use the PHP constant “PHP_EOL”?
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365
Yes, PHP_EOL is ostensibly used to find the newline character in a cross-platform-compatible way...
Eclipse git checkout (aka, revert)
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answered Nov 5 '10 at 7:30
Sergii RudchenkoSergii Rudchenko
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Calculating the difference between two Java date instances
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edited Feb 5 '19 at 10:07
JodaStephen
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Should a function have only one return statement?
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50 Answers
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Why doesn't print work in a lambda?
...test Python 2.x:
In [1324]: from __future__ import print_function
In [1325]: f = lambda x: print(x)
In [1326]: f("HI")
HI
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Error : The service is invalid
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edited Sep 9 '10 at 5:09
answered Jul 14 '10 at 2:19
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Printing the value of a variable in SQL Developer
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205
You need to turn on dbms_output.
In Oracle SQL Developer:
Show the DBMS Output window (View-&g...
How to JSON serialize sets?
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Erwin Mayer
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answered Nov 22 '11 at 16:41
Raymond Hetting...