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  1. 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 …

  2. 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.

  3. 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 '%' + @

  4. Login to Microsoft SQL Server Error: 18456 - Stack Overflow

    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?

  5. sql - Copy data into another table - Stack Overflow

    How to copy/append data from one table into another table with same schema in SQL Server? Edit: let's say there is a query select * into table1 from table2 where 1=1 which creates table1 wi...

  6. sql - Efficiently convert rows to columns - Stack Overflow

    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 1 John

  7. sql server - SQL MAX of multiple columns? - Stack Overflow

    Mar 8, 2012 · How do you return 1 value per row of the max of several columns: TableName [Number, Date1, Date2, Date3, Cost] I need to return something like this: [Number, Most_Recent_Date, Cost] …

  8. Get the last day of the month in SQL - Stack Overflow

    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

  9. 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 the following …

  10. 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 …