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] od …
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 an …
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.
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 OrderNumber LIKE '%' + @
How to calculate percentage with a SQL statement
Due to precedence of SQL statements it will be the same. however, due to data types if using 100 you can still get the result rounded to 0 decimals you desire for the % where as if you put it after the …
sql - Find all tables containing column with specified name - Stack ...
17 In MS SQL Server Database, use this query to get the tables and respective column names that contains the input text:
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 columns (rotating …
SQL Server® 2016, 2017, 2019 and 2022 Express full download
Jan 25, 2017 · All previous version of SQL Server Express were available in both web and full downloads. But I cannot find full download of SQL Server® 2016 Express. Does it exist? Asked the …
SQL SELECT WHERE field contains words - Stack Overflow
Jan 12, 2013 · I need a select which would return results like this: SELECT * FROM MyTable WHERE Column1 CONTAINS 'word1 word2 word3' And I need all results, i.e. this includes strings with 'word2 …
How to select unique records by SQL - Stack Overflow
How to select unique records by SQL Asked 16 years, 1 month ago Modified 1 year, 11 months ago Viewed 748k times