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] …
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 …
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 - 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 …
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 - What is the difference between JOIN and INNER JOIN
SELECT * FROM table INNER JOIN otherTable ON table.ID = otherTable.FK Is there any difference between the statements in performance or otherwise? Does it differ between …
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
sql - Concatenate text from multiple rows into a single text string ...
Consider a database table holding names, with three rows: Peter Paul Mary Is there an easy way to turn this into a single string of Peter, Paul, Mary?
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 747k times