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] …

The @CustID means it's a parameter that you will supply a value for later in your code. This is the best way of protecting against SQL injection. Create your query using parameters, rather than …

Sep 15, 2008 · The CASE statement is the closest to IF in SQL and is supported on all versions of SQL Server.

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 …

Apr 5, 2019 · SQL to find the number of distinct values in a column Asked 17 years, 2 months ago Modified 2 years, 8 months ago Viewed 826k times

I'm looking for an efficient way to convert rows to columns in SQL Server, I heard that PIVOT is not very fast, and I need to deal with lot of records. This is my example: Id Value ColumnName …

Jul 8, 2016 · I am getting this error while trying to connect to the SQL Server. Microsoft SQL Server Error: 18456 Can anybody tell me what the error code means?

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 …

From SQL Server 2012 you can use the EOMONTH function. Returns the last day of the month that contains the specified date, with an optional offset. Syntax

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 …