How do I run a select query in a for loop?
Running a Query Inside the Loop
- WHILE @Counter <= @MaxOscars.
- SET @NumFilms =
- SELECT COUNT(*)
- FROM tblFilm.
- WHERE FilmOscarWins = @Counter.
- SET @Counter += 1.
How do you loop through a record in PL SQL?
create or replace FUNCTION func_count_rows(table_name IN varchar2, debug boolean default false) RETURN number IS total number(2) := 0; BEGIN IF debug = true THEN DBMS_OUTPUT. put(‘Function count rows: ‘); DBMS_OUTPUT. PUT_LINE(‘select count(*) from ‘ || table_name || ‘;’); DBMS_OUTPUT. put(‘Returns: ‘); DBMS_OUTPUT.
Can we use basic loop in PL SQL?
Basic loop or simple loop is preferred in PL/SQL code when there is no surety about how many times the block of code is to be repeated. When we use the basic loop the code block will be executed at least once.
Can you write a for loop in SQL?
In SQL Server, there is no FOR LOOP. However, you simulate the FOR LOOP using the WHILE LOOP.
Can we use loop in select statement?
The for-loop-name can be used to qualify the column names in the result set as returned by the select-statement.
When a select into statement does not return a row?
If the SELECT statement returns more than one row, Oracle will raise the TOO_MANY_ROWS exception. If the SELECT statement does not return any row, Oracle will raise the NO_DATA_FOUND exception.
How do I run a loop in Oracle SQL Developer?
Starts here9:38Looping in Oracle PLSQL – YouTubeYouTube
How do you break a while loop in PL SQL?
Note: You must follow these steps while using PL/SQL Exit Loop.
- Initialize a variable before the loop body.
- Increment the variable in the loop.
- You should use EXIT WHEN statement to exit from the Loop. Otherwise the EXIT statement without WHEN condition, the statements in the Loop is executed only once.
What is loop statement in PL/SQL?
PL/SQL LOOP statement is an iterative control statement that allows you to execute a sequence of statements repeatedly like WHILE and FOR loop. The simplest form of the LOOP statement consists of the LOOP keyword, a sequence of statements and the END LOOP keywords as shown below:
How do you terminate a loop in PL SQL?
PL/SQL provides EXIT and EXIT-WHEN statements to allow you to terminate a loop. The EXIT forces the loop halts execution unconditionally and passes control to the next statement after the LOOP statement. You typically use the EXIT statement with the IF statement.
How to handle looping requirements in PL/SQL?
PL/SQL provides the following types of loop to handle the looping requirements. Click the following links to check their detail. In this loop structure, sequence of statements is enclosed between the LOOP and the END LOOP statements. At each iteration, the sequence of statements is executed and then control resumes at the top of the loop.
What does PL/SQL mean?
PL/SQL LOOP statement is an iterative control statement that allows you to execute a sequence of statements repeatedly like WHILE and FOR loop. The simplest form of the LOOP statement consists of the LOOP keyword, a sequence of statements and the END LOOP keywords as shown below: sequence_of_statements; END LOOP;