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How to find third or nth maximum salary from salary table?
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Getting this error. Error Code : 1248 Every derived table must have its own alias
– user5347751
Nov 3 '15 at 4:08
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How to tell if a string is not defined in a Bash shell script
...o use a default value, ${foo:=default} to assign the default value, ${foo:?error message} to display an error message if foo is unset, etc.
– Jouni K. Seppänen
Oct 23 '08 at 4:54
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MySQL: Insert record if not exists in table
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And so on...
Update:
To prevent #1060 - Duplicate column name error in case two values may equal, you must name the columns of the inner SELECT:
INSERT INTO table_listnames (name, address, tele)
SELECT * FROM (SELECT 'Unknown' AS name, 'Unknown' AS address, '022' AS tele) AS tmp
WHERE ...
Reserved keywords in JavaScript
... try {
eval('var ' + wordToCheck + ' = 1');
} catch (error) {
reservedWord = true;
}
}
return reservedWord;
}
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How to have TFS 2010 detect changes done to files outside of Visual Studio?
... Unfortunately, when doing this over my whole project, I get the error The specified path, filename, or both are too long. The fully qualified name must be less than 260 characters, and the directory name must be less than 248 characters. Selecting individual folders is not an option for m...
What is the difference between syntax and semantics in programming languages?
...ement has no meaning (according to the C language rules) and thus it is an error even though the statement is syntactically correct.
If x is a pointer to some data type, the meaning of the statement is to "add sizeof(some data type) to the value at address x and store the result into the location at...
SQL parser library for Java [closed]
Is there an open-source Java library for parsing SQL statements?
7 Answers
7
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How do I perform a Perl substitution on a string while keeping the original?
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Ah, but the one line version isn't subject to the error in the question of unintentionally modifying the wrong string.
– ysth
Sep 19 '08 at 6:13
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Linux command (like cat) to read a specified quantity of characters
...tes=[-]N
print the first N bytes of each file; with the leading '-', print all but the last N bytes of each file
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Read logcat programmatically within application
...= new ProcessBuilder()
.command("logcat", "-c")
.redirectErrorStream(true)
.start();
} catch (IOException e) {
}
}
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