In SQL

In recent times, in sql has become increasingly relevant in various contexts. 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 WHERE p. SQL: IF clause within WHERE clause - Stack Overflow.

Is it possible to use an IF clause within a WHERE clause in MS SQL? This perspective suggests that, example: WHERE IF IsNumeric(@OrderNumber) = 1 OrderNumber = @OrderNumber ELSE OrderNumber LIKE '%' + @ How do I perform an IF...THEN in an SQL SELECT?.

2060 The CASE statement is the closest to IF in SQL and is supported on all versions of SQL Server. In relation to this, what is the use of the square brackets [] in sql statements?. In relation to this, the Microsoft book for SQL course says "You should use two-part names to refer to tables in SQL Server databases, such as Sales.Customer" so they don't ask to surround namespace with square bracket but if I remember correctly, surrounding them puts it in the right namepsace. SQL WITH clause example - Stack Overflow.

353 The SQL WITH clause was introduced by Oracle in the Oracle 9i release 2 database. The SQL WITH clause allows you to give a sub-query block a name (a process also called sub-query refactoring), which can be referenced in several places within the main SQL query. The name assigned to the sub-query is treated as though it was an inline view or ...

sql - Incorrect syntax near '' - Stack Overflow. Equally important, i'm trying to run the following fairly simple query in SQL Server Management Studio: SELECT TOP 1000 * FROM master.sys.procedures as procs left join master.sys.parameters as params on p... sql - How do I remove the first characters of a specific column in a .... Column name is Student Code and an example value is ABCD123Stu1231. How to calculate percentage with a SQL statement.

Due to precedence of SQL statements it will be the same. From another angle, 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 after the division operation you would have to make sure that you cast to a data type that can handle the decimal places otherwise you will end up with ... Remove all spaces from a string in SQL Server - Stack Overflow. What is the best way to remove all spaces from a string in SQL Server 2008?

LTRIM(RTRIM(' a b ')) would remove all spaces at the right and left of the string, but I also need to remove the space ... In this context, convert Month Number to Month Name Function in SQL. SQL Server nowadays can get the ordinalnummer of a comma separated value of values, using the STRING_SPLIT function Also the names of the month are already stored in SQL Server (use: SELECT month FROM sys.syslanguages)