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How to check if a Constraint exists in Sql server?
...RE type_desc LIKE '%CONSTRAINT'
AND OBJECT_NAME(OBJECT_ID)='XYZ'
If you need even more constraint information, look inside the system stored procedure master.sys.sp_helpconstraint to see how to get certain information. To view the source code using SQL Server Management Studio get into th...
Proper way to catch exception from JSON.parse
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i post something into an iframe then read back the contents of the iframe with json parse...so sometimes it's not a json string
Try this:
if(response) {
try {
a = JSON.parse(response);
} catch(e) {
alert(e); // error in the...
Running bash script from within python
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The shell=True parameter is not needed (under a Posix system like Linux) if the first line of the bash script is a path to a shell; for example, #!/bin/bash.
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How to get MVC action to return 404
... have an action that takes in a string that is used to retrieve some data. If this string results in no data being returned (maybe because it has been deleted), I want to return a 404 and display an error page.
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Version vs build in Xcode
...he target summary I have the iOS application target form with fields: identifier, version, build, devices, and deployment target. The version field is blank and the build field is 3.4.0 (which matches the version of the app from when I was still editing with Xcode 3).
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Appropriate datatype for holding percent values?
..., the data type you use depends on how you plan to store your percentages. If you are going to store their fractional equivalent (e.g. 100.00% stored as 1.0000), I would store the data in a decimal(5,4) data type with a CHECK constraint that ensures that the values never exceed 1.0000 (assuming that...
How to hide a in a menu with CSS?
...n.toggleOption = function( show ) {
jQuery( this ).toggle( show );
if( show ) {
if( jQuery( this ).parent( 'span.toggleOption' ).length )
jQuery( this ).unwrap( );
} else {
if( jQuery( this ).parent( 'span.toggleOption' ).length == 0 )
jQuery( this...
Assign output of a program to a variable using a MS batch file
...ens=*" %%i in ('"tasklist | grep explorer"') do set VAR=%%i. Easier for me if there're no quotes in the command itself.
– Paul
Apr 22 at 23:31
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How to count total lines changed by a specific author in a Git repository?
...s there a command I can invoke which will count the lines changed by a specific author in a Git repository? I know that there must be ways to count the number of commits as Github does this for their Impact graph.
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How can I get the source code of a Python function?
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If the function is from a source file available on the filesystem, then inspect.getsource(foo) might be of help:
If foo is defined as:
def foo(arg1,arg2):
#do something with args
a = arg1 + arg2
...