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 …

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 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 '%' + @

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?

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

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

Apr 5, 2019 · I can select all the distinct values in a column in the following ways: SELECT DISTINCT column_name FROM table_name; SELECT column_name FROM table_name GROUP BY …

Feb 22, 2013 · In addition to the CAST and CONVERT functions in the previous answers, if you are using SQL Server 2012 and above you use the FORMAT function to convert a DATETIME based …

Use the built-in functions for length and max on the description column: SELECT MAX(LEN(DESC)) FROM table_name; Note that if your table is very large, there can be performance issues.

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 different SQL …