How do you write an if statement in SQL?

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IF … Else Statement

  1. If the condition evaluates to True, the T-SQL statements followed by the IF keyword are executed.
  2. If the condition evaluates to False, T-SQL statements followed by the ELSE keyword are executed.

How to write an if statement in a SQL query?

In the next SQL IF statement, it evaluates the expression and if the condition is true, it executes the statement named in the IF block, otherwise the statements in the ELSE clause are executed. We can understand the SQL IF statement with the help of the following flowchart. 20

How do I write an if statement?

Use the IF function, one of the logic functions, to return one value when a condition is true and a different value when it is false. For example: =IF(A2>B2,Over Budget,OK) =IF(A2=B2,B4A4,)

How do I add an if-else condition in a SQL query?

How to add IF ELSE logic to SQL queries

  1. case when condition1 then result1 when condition2 then result2 when condition3 then result3 else result end as columnname
  2. select game, year, case when game like Sonic % then Y else N ends with Sonic Series by sega_sales order by Sonic Series desc.
  3. Select game, global, case if global >= 4.

What is the syntax of the if statement?

The syntax of an if statement in the C programming language is: − if (boolean_expression) { /* statement(s) are executed if the boolean expression evaluates to true */ } If the boolean expression evaluates to true, the block of code in the if statement becomes executed.

How do you write multiple conditions in an if statement in SQL Server?

Multiple IF conditions using ELSE

  1. to test whether a condition is true. IF (condition true) START.
  2. DO THING A. DO THING B. END.
  3. OTHER. BEGIN. DO THING C.
  4. DO THING D. DO THING E. END.

Can we use if in where clauses in SQL?

This is a very common technique in a WHERE clause. If you want to apply IF logic in the WHERE clause, you just need to add the additional condition with a boolean AND in the section where you want it to be applied. You don’t need an IF statement at all.

What is an example of an if statement?

if (score >= 90) grade = A The following example prints number is positive if the value of number is greater than or equal to 0. If the value of number is less than 0, number is negative. if (Number >= 0) printf(Number is positive\n) else printf(Number is negative\n)

What are the 3 arguments of the IF function?

The IF function is quite simple and takes the following three arguments.

  • Logical test.
  • Value if true.
  • Value if false (optional)

How do I iterate in SQL?

Solution

  1. Use DATABASENAME.
  2. GO.
  3. DECLARE @PRODUCTDETAILSTABLE table (PRODUCTNAME nvarchar(100), PRODUCTID int, PRODUCTCOST int)
  4. Declare your table as a table variable.
  5. DECLARE @MYARRAY table (TEMPCOL nvarchar(50), ARRAYINDEX int identity(1,1) )

What is a function called in SQL?

How to call a function in SQL Server Stored Procedure

  1. create function function_to_be_called(@username varchar(200))
  2. returns varchar(100)
  3. as.
  4. begin.
  5. declare @password varchar(200)
  6. set @password=(select [password] from [User] where username =@username)
  7. return @password .
  8. End.