Does SQL Server have else if?
SQL Else If Syntax
The SQL Server else if statement handles multiple statements effectively by executing them sequentially. It will check for the first condition. If the condition is TRUE, then it will execute the statements present in that block.
How use multiple IF condition in SQL query?
If you are checking conditions against multiple variables then you would have to go for multiple IF Statements, Each block of code will be executed independently from other blocks. ELSE IF(@ID IS NOT NULL AND @ID in (SELECT ID FROM Places)) — Outer Most Block ELSE IF BEGIN SELECT @MyName = Name … …
Can I use IF statement in SQL?
IF statements can be used to conditionally enter into some logic based on the status of a condition being satisfied. The IF statement supports the use of optional ELSE IF clauses and a default ELSE clause. … An END IF clause is required to indicate the end of the statement.
Which is better case or if else in SQL?
It is not about which one is “better”. IF and Case are just completely different. If statements are used to control flow of steps in a batch and a case statement determines which value to use in a column of a select statement. Notice in your first example you may not get a result if the condition is false.
How many else if can I use in SQL?
2 Answers. Yes, they are the same. Only one condition will be executed and the order of conditions is crucial.
Can I use case in where clause SQL Server?
CASE STATEMENT IN WHERE CLAUSE:
We can use a case statement in Where, Order by and Group by clause. … So, by using a CASE statement with the where condition displays the result.
How many else clauses can an if statement have?
When you want to define more than two blocks of statements, use the ElseIf Statement. You can nest up to ten levels of If… Then… Else statements. If you need to create an expression with more than ten levels, you must redefine it using the ElseIf statement or the Select Case…
How do you write an IF THEN statement in SQL?
Syntax. IF (a <= 20) THEN c:= c+1; END IF; If the Boolean expression condition evaluates to true, then the block of code inside the if statement will be executed. If the Boolean expression evaluates to false, then the first set of code after the end of the if statement (after the closing end if) will be executed.
Which query is used to get the current date?
MySQL SYSDATE() Function
The SYSDATE() function returns the current date and time. Note: The date and time is returned as “YYYY-MM-DD HH:MM:SS” (string) or as YYYYMMDDHHMMSS (numeric).
What is IIF SQL Server?
IIF is a shorthand way for writing a CASE expression. It evaluates the Boolean expression passed as the first argument, and then returns either of the other two arguments based on the result of the evaluation.
Is operator in SQL Server?
Introduction to SQL IS operator
Fortunately, SQL provides the IS operator to check whether a value is NULL . The IS NULL returns TRUE if the expression is NULL , otherwise it returns FALSE . If you use the NOT operator, the expression returns a TRUE if the expression is not NULL , otherwise it returns FALSE .