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SQL: IF clause within WHERE clause
... THEN '%' + @OrderNumber
ELSE ''
END
2) Use IF's outside the SELECT
IF (IsNumeric(@OrderNumber)) = 1
BEGIN
SELECT * FROM Table
WHERE @OrderNumber = OrderNumber
END ELSE BEGIN
SELECT * FROM Table
WHERE OrderNumber LIKE '%' + @OrderNumber
END
3) Using a long string, co...
How many database indexes is too many?
...
It depends on the operations that occur on the table.
If there's lots of SELECTs and very few changes, index all you like.... these will (potentially) speed the SELECT statements up.
If the table is heavily hit by UPDATEs, INSERTs + DELETEs ... these will be very slow with lots of indexes since t...
Proper way to renew distribution certificate for iOS
...ate
Login to Member Center > Certificates, Identifiers & Profiles, select the expiring certificate. Take note of the expiry date of the certificate, and click the ‘Revoke’ button.
Step 2: (Optional) Remove the revoked certificate from your Keychain
Optionally, if you don't want to ha...
How to get a group of toggle buttons to act like radio buttons in WPF?
...ike toggle buttons, but also as radio buttons where only one button can be selected / pressed down at a current time. It also need to have a state where none of the buttons are selected / pressed down.
...
How can one see the structure of a table in SQLite? [duplicate]
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You can query sqlite_master
SELECT sql FROM sqlite_master WHERE name='foo';
which will return a create table SQL statement, for example:
$ sqlite3 mydb.sqlite
sqlite> create table foo (id int primary key, name varchar(10));
sqlite> select sql f...
How to view UTF-8 Characters in VIM or Gvim
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On Microsoft Windows, gvim wouldn't allow you to select non-monospaced fonts. Unfortunately Latha is a non-monospaced font.
There is a hack way to make it happen: Using FontForge (you can download Windows binary from http://www.geocities.jp/meir000/fontforge/) to edit the L...
Is there a download function in jsFiddle?
...
Crucial step missing. After jsfiddle.net/Ua8Cv/show select the javascript, choose view frame source, then save. Not just page source.
– Eric Bridger
Jan 25 '16 at 19:32
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Wrong Manifest.mf in IntelliJ IDEA created .jar
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To fix:
File > Project Structure
Under Project Settings on the left, select "Artifacts"
Find the JAR definition In the middle pane and select it
In the left pane of the "Output Layout" tab find the jar file in the list and select it
At the bottom, click the "Use Existing Manifest" button and s...
How to Concatenate Numbers and Strings to Format Numbers in T-SQL?
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select 'abcd' + ltrim(str(1)) + ltrim(str(2))
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What is Ad Hoc Query?
... SQL query you just loosely type out where you need it
var newSqlQuery = "SELECT * FROM table WHERE id = " + myId;
...which is an entirely different query each time that line of code is executed, depending on the value of myId. The opposite of an ad hoc query is a predefined query such as a Store...