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Possible to do a MySQL foreign key to one of two possible tables?
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answered Jan 13 '09 at 22:32
Bill KarwinBill Karwin
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Parse query string in JavaScript [duplicate]
... == aboutus.aspx
And to parse the query string of current page:-
var $_GET = URI(document.URL).query(true); // ala PHP
alert($_GET['dest']); // == aboutus.aspx
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What's valid and what's not in a URI query?
...> -> %3E
? -> ?
@ -> @
[ -> [
\ -> \
] -> ]
^ -> ^
_ -> _
` -> `
{ -> {
| -> |
} -> }
~ -> ~
Extended ASCII (like °) -> Every character from this set is encoded
Note: That probably doesn't mean you shouldn't escape characters that didn't get replaced ...
Git: How to remove file from index without deleting files from any repository
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Check if a string is html or not
I have a certain string for which I want to check if it is a html or not. I am using regex for the same but not getting the proper result.
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Fast way to discover the row count of a table in PostgreSQL
I need to know the number of rows in a table to calculate a percentage. If the total count is greater than some predefined constant, I will use the constant value. Otherwise, I will use the actual number of rows.
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How can I get useful error messages in PHP?
...is page in the PHP documentation for information on the 2 directives: error_reporting and display_errors. display_errors is probably the one you want to change. If you can't modify the php.ini, you can also add the following lines to an .htaccess file:
php_flag display_errors on
php_value e...
Install NPM into home directory with distribution nodejs package (Ubuntu)
... up a package root in my homedir to hold the Node "global" packages:
$ NPM_PACKAGES="$HOME/.npm-packages"
$ mkdir -p "$NPM_PACKAGES"
Set NPM to use this directory for its global package installs:
$ echo "prefix = $NPM_PACKAGES" >> ~/.npmrc
Configure your PATH and MANPATH to see commands i...
Nullable Foreign Key bad practice?
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source__destination_link or SourceDestination
– Svisstack
Jan 20 '12 at 23:33
7
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MySQL - Rows to Columns
I tried to search posts, but I only found solutions for SQL Server/Access. I need a solution in MySQL (5.X).
12 Answers
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