Review

Can we use for loop in SQL query?

Can we use for loop in SQL query?

In SQL Server, there is no FOR LOOP. However, you simulate the FOR LOOP using the WHILE LOOP.

What is the SQL for contains?

CONTAINS is a predicate used in the WHERE clause of a Transact-SQL SELECT statement to perform SQL Server full-text search on full-text indexed columns containing character-based data types. CONTAINS can search for: A word or phrase. The prefix of a word or phrase.

How does for loop work in SQL?

PL/SQL – FOR LOOP Statement

  1. The initial step is executed first, and only once.
  2. Next, the condition, i.e., initial_value ..
  3. After the body of the for loop executes, the value of the counter variable is increased or decreased.
  4. The condition is now evaluated again.

How do you select a loop in SQL query?

The while loop in SQL begins with the WHILE keyword followed by the condition which returns a Boolean value i.e. True or False. The body of the while loop keeps executing unless the condition returns false. The body of a while loop in SQL starts with a BEGIN block and ends with an END block.

How do I run a for loop in MySQL?

The MySQL LOOP statement could be used to run a block of code or set of statements, again and again, depends on the condition.

  1. Syntax : [labelname:] LOOP statements END LOOP [labelname]
  2. Parameters –

How do you write a loop in SQL Server?

The syntax for the While Loop in SQL Server (T-SQL) is, WHILE BEGIN….For example,

  1. DECLARE @numValue INT = 0.
  2. WHILE @numValue < 5.
  3. BEGIN.
  4. SET @numValue = @numValue + 1.
  5. PRINT ‘Inside WHILE LOOP ‘ + CAST(@numValue AS VARCHAR) + ‘ !! ‘
  6. END.
  7. PRINT ‘WHILE LOOP End !! ‘

Can we use FOR LOOP in SQL query Oracle?

So, while Oracle SQL does not directly support while loops of for loops, there is extended syntax for looping within some stored procedures that are embedded into Oracle SQL.

Can select be used as a loop?

Using a Select Loop. The select loop allows the program to perform a computation for each selected row, rather than to display results to you, as in the select to a form, table field, record, or array statement.

How do you write a for loop in SQL Server?

I am detailing answer on ways to achieve different types of loops in SQL server.

  1. FOR Loop. DECLARE @cnt INT = 0; WHILE @cnt < 10 BEGIN PRINT ‘Inside FOR LOOP’; SET @cnt = @cnt + 1; END; PRINT ‘Done FOR LOOP’;
  2. DO.. WHILE Loop.
  3. REPEAT..UNTIL Loop.

How many types of loops are there in MySQL?

three types
The MySQL stored program language offers three types of loops : Simple loops using the LOOP and END LOOP clauses. Loops that continue while a condition is true, using the WHILE and END WHILE clauses. Loops that continue until a condition is true, using the REPEAT and UNTIL clauses.

What is WHILE loop statement?

A “While” Loop is used to repeat a specific block of code an unknown number of times, until a condition is met. For example, if we want to ask a user for a number between 1 and 10, we don’t know how many times the user may enter a larger number, so we keep asking “while the number is not between 1 and 10”.

  • October 24, 2022

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