Should I use != or <> for not equal in T-SQL? - Stack Overflow
Yes; Microsoft themselves recommend using <> over != specifically for ANSI compliance, e.g. in Microsoft Press training kit for 70-461 exam, "Querying Microsoft SQL Server", they say "As …
sql - NOT IN vs NOT EXISTS - Stack Overflow
Which of these queries is the faster? NOT EXISTS: SELECT ProductID, ProductName FROM Northwind..Products p WHERE NOT EXISTS ( SELECT 1 FROM Northwind..[Order Details] …
What does SQL Select symbol || mean? - Stack Overflow
Apr 29, 2014 · sql server: + (infix operator), concat ( vararg function ) Edit : Now Azure SQL also supports ANSI SQL standard || operator for string concatenation. Docs link.
SQL: IF clause within WHERE clause - Stack Overflow
Sep 18, 2008 · Is it possible to use an IF clause within a WHERE clause in MS SQL? Example: WHERE IF IsNumeric(@OrderNumber) = 1 OrderNumber = @OrderNumber ELSE …
How do I perform an IF...THEN in an SQL SELECT?
Sep 15, 2008 · The CASE statement is the closest to IF in SQL and is supported on all versions of SQL Server. SELECT CAST( CASE WHEN Obsolete = 'N' or InStock = 'Y' THEN 1 ELSE 0 …
How to fix Recovery Pending State in SQL Server Database?
Sep 14, 2018 · Rename the DB and the Log files (Database Properties -> Files) In the Object Explorer window in SQL Management Studio, refresh the 'Databases Folder', if you see that …
sql - Exclude a column using SELECT * [except columnA] FROM …
FROM TableA This very powerful SQL syntax avoids a long list of columns that must be constantly updated due to table column name changes. This functionality is missing in the …
sql - Incorrect syntax near '' - Stack Overflow
I'm trying to run the following fairly simple query in SQL Server Management Studio: SELECT TOP 1000 * FROM master.sys.procedures as procs left join master.sys.parameters as params …
sql - What is the difference between JOIN and INNER JOIN
per the ANSI SQL 92 specification, they are identical: "3) If a <qualified join> is specified and a <join type> is not specified, then INNER is implicit."
Convert Rows to columns using 'Pivot' in SQL Server
Apr 10, 2013 · Pivot is one of the SQL operator which is used to turn the unique data from one column into multiple column in the output. This is also mean by transforming the rows into …