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 <> (angle brackets) mean in MS-SQL Server?
Nov 8, 2013 · In My Query one place some other developer using <> (angle brackets) What does it mean ?
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: 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.
sql - Find all tables containing column with specified name - Stack ...
@Revious INFORMATION_SCHEMA views included in SQL Server comply with the ISO standard definition for the INFORMATION_SCHEMA., sys.columns, sys.tables is Microsoft Sql Server …
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 …
sql - Incorrect syntax near '' - Stack Overflow
SELECT TOP 1000 * FROM master.sys.procedures as procs left join master.sys.parameters as params on procs.object_id = params.object_id This seems totally correct, but I keep getting …
sql - Delete duplicate rows keeping the first row - Stack Overflow
10 To delete the duplicate rows from the table in SQL Server, you follow these steps: Find duplicate rows using GROUP BY clause or ROW_NUMBER () function. Use DELETE …
SQL to find the number of distinct values in a column
SQL to find the number of distinct values in a column Asked 17 years, 2 months ago Modified 2 years, 7 months ago Viewed 826k times