Can we use if else in Oracle SQL query?

Can we use if else in Oracle SQL query?

In Oracle, the IF-THEN-ELSE statement is used to execute code when a condition is TRUE, or execute different code if the condition evaluates to FALSE.

What are the different conditional IF statement in PL SQL?

The IF statement evaluates a condition. The condition can be anything that evaluates to a logical value of true or false such as comparison expression or a combination of multiple comparison expressions. The PL/SQL IF statement has three forms: IF-THEN , IF-THEN-ELSE and IF-THEN-ELSIF .

What keyword can you add to both continue and exit?

The if statement can be used with both Continue and Exit functions. In computer programming languages such as C or python or other, we use these statement in conditional sense that if a certain condition is reached, then we need to exit the loop or simple continue to next loop.

Can case be used in WHERE clause?

CASE can be used in any statement or clause that allows a valid expression. For example, you can use CASE in statements such as SELECT, UPDATE, DELETE and SET, and in clauses such as select_list, IN, WHERE, ORDER BY, and HAVING.

What command removes triggers?

Which statement is used to remove a trigger? Explanation: In order to delete a trigger, the DROP TRIGGER statement is used.

What does IF THEN ELSE mean?

Definition of: if-then-else. if-then-else. A high-level programming language statement that compares two or more sets of data and tests the results. If the results are true, the THEN instructions are taken; if not, the ELSE instructions are taken.

Is PL/SQL exclusive to Oracle?

Yes. PL/SQL is Oracle’s procedural extensions to the SQL language. Most databases have their own dialect of procedural extensions– SQL Server has T-SQL and PostreSQL has PLpg/SQL which is very close to PL/SQL. Justin.

What is if statement in SQL?

SQL Else If. The SQL Else If statement is very useful to check multiple conditions at once. It is an extension to the If then Else (which we discussed in the earlier post). If Else statement will only execute the statements when the given condition is either true or False but in real world, we may have to check more than two conditions.

What is select in Oracle?

Oracle SELECT Statement. The Oracle SELECT statement is used to retrieve data from one or more than one tables, object tables, views, object views etc. Syntax. 1) expressions: It specifies the columns or calculations that you want to retrieve.