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How to check if a column exists in a SQL Server table?
...(SELECT 1 FROM sys.columns
WHERE Name = N'columnName'
AND Object_ID = Object_ID(N'schemaName.tableName'))
BEGIN
-- Column Exists
END
Martin Smith's version is shorter:
IF COL_LENGTH('schemaName.tableName', 'columnName') IS NOT NULL
BEGIN
-- Column Exists
END
...
“’” showing on page instead of “ ' ”
...
Ensure the browser and editor are using UTF-8 encoding instead of ISO-8859-1/Windows-1252.
Or use ’.
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Insert Update stored proc on SQL Server
...
Your assumption is right, this is the optimal way to do it and it's called upsert/merge.
Importance of UPSERT - from sqlservercentral.com:
For every update in the case mentioned above we are removing one
additional read from the table if we
use the UPSERT instead of EXISTS....
JSON.stringify without quotes on properties?
...n to remove quotes by formally parsing the JSON string via native function and reserialize it:
function stringify(obj_from_json) {
if (typeof obj_from_json !== "object" || Array.isArray(obj_from_json)){
// not an object, stringify using native function
return JSON.stringify(obj_...
What does an Asterisk (*) do in a CSS selector?
I found this CSS code and I ran it to see what it does and it outlined EVERY element on the page,
5 Answers
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Does R have an assert statement as in python?
a statement that checks if something is true and if not prints a given error message and exits
3 Answers
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How can I limit Parallel.ForEach?
...e a Parallel.ForEach() async loop with which I download some webpages. My bandwidth is limited so I can download only x pages per time but Parallel.ForEach executes whole list of desired webpages.
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Codesign error: Provisioning profile cannot be found after deleting expired profile
...y. Got a message that a profile had expired, so I removed it from the iPod and from iTunes. When I chose a new profile (one with an * in the identifier), I now get an error:
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How to remove “onclick” with JQuery?
...stackoverflow.com/questions/209029/…
– Lance Cleveland
Jan 6 '12 at 18:04
6
See first comment o...
How to find a deleted file in the project commit history?
...ch touched that file. Then, you can find the version of the file you want, and display it with...
git show <SHA> -- <path-to-file>
Or restore it into your working copy with:
git checkout <SHA>^ -- <path-to-file>
Note the caret symbol (^), which gets the checkout prior to...