Is the keyword end if else used in PL SQL?

How do you end an if statement in PL SQL?

The EXIT WHEN Statement

The EXIT-WHEN statement allows the condition in the WHEN clause to be evaluated. If the condition is true, the loop completes and control passes to the statement immediately after the END LOOP.

How do you write if else condition in PL SQL?

The syntax for IF-THEN-ELSE in Oracle/PLSQL is: IF condition THEN {… statements to execute when condition is TRUE…} ELSE {… statements to execute when condition is FALSE…}

Is keyword in PL SQL?

Question: What is the difference between ‘IS’ and ‘AS’ in PL/SQL? Answer: The PL/SQL language evolved such the the “IS” and “AS” operators are equivalent. Functionally the “IS” and “AS” syntax performs identical functions and can be used interchangeably.

How many else clauses can an if statement have in PL SQL?

An IF statement can have any number of ELSIF clauses; the final ELSE clause is optional. Boolean expressions are evaluated one by one from top to bottom. If any expression returns TRUE , its associated sequence of statements is executed and control passes to the next statement.

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Can PL SQL procedure have a return statement?

A Procedure in SQL can have a RETURN statement to return the control to the calling block, but it cannot return any values through the RETURN statement. Procedures cannot be called directly from SELECT statements. They can be called from another block or through EXEC keyword.

Where do you declare variables in PL SQL procedures?

PL/SQL variables must be declared in the declaration section or in a package as a global variable. When you declare a variable, PL/SQL allocates memory for the variable’s value and the storage location is identified by the variable name.

Does SQL have else if?

Else statement in SQL Server. In MS SQL, IF…ELSE is a type of Conditional statement. Any T-SQL statement can be executed conditionally using IF… ELSE. If the condition evaluates to True, then T-SQL statements followed by IF condition in SQL server will be executed.

How do you stop an infinite loop in PL SQL?

END LOOP; With each iteration of the loop, the sequence of statements is executed, then control resumes at the top of the loop. You use an EXIT statement to stop looping and prevent an infinite loop. You can place one or more EXIT statements anywhere inside a loop, but not outside a loop.

Can we use for loop in SQL?

There is no FOR in SQL, But you can use WHILE or GOTO to achieve the way how the FOR will work. I always prefer WHILE over GOTO statement. For loop is not officially supported yet by SQL server.

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What is a nested loop give an example?

A nested loop is a (inner) loop that appears in the loop body of another (outer) loop. For example, the inner loop can be a while loop while an outer loop can be a for loop. …

Which identifier is valid in PL SQL?

You can use uppercase, lowercase, or mixed case to write identifiers. PL/SQL is not case-sensitive except within string and character literals. Every character, including dollar signs, underscores, and number signs, is significant.

What are the keywords in PL SQL?

D PL/SQL Reserved Words and Keywords

Begins with: Keywords
P PACKAGE, PARALLEL_ENABLE, PARAMETER, PARAMETERS, PARTITION, PASCAL, PIPE, PIPELINED, PRAGMA, PRECISION, PRIVATE
R RAISE, RANGE, RAW, READ, RECORD, REF, REFERENCE, REM, REMAINDER, RENAME, RESULT, RETURN, RETURNING, REVERSE, ROLLBACK, ROW

What keywords are used to determine a PL SQL block?

A PL/SQL block is defined by the keywords DECLARE , BEGIN , EXCEPTION , and END . These keywords partition the block into a declarative part, an executable part, and an exception-handling part.

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