Does SQL have while loop?

How do you do a WHILE loop in SQL Server?

UNTIL version of SQL server.

  1. DO.. WHILE Loop. …
  2. REPEAT..UNTIL Loop. DECLARE @X INT = 1; WAY: — Here the REPEAT statement PRINT @X; SET @X += 1; IFNOT(@X > 10) GOTO WAY;
  3. FOR Loop. DECLARE @cnt INT = 0; WHILE @cnt < 10 BEGIN PRINT ‘Inside FOR LOOP’; SET @cnt = @cnt + 1; END; PRINT ‘Done FOR LOOP’;

How do you iterate in SQL query?

Solution

  1. Use DATABASENAME.
  2. GO.
  3. DECLARE @PRODUCTDETAILSTABLE table (PRODUCTNAME nvarchar(100), PRODUCTID int, PRODUCTCOST int)
  4. — Declare your array table variable.
  5. DECLARE @MYARRAY table (TEMPCOL nvarchar(50), ARRAYINDEX int identity(1,1) )

How do I stop a WHILE LOOP in SQL?

SQL Server BREAK statement overview

To exit the current iteration of a loop, you use the BREAK statement. In this syntax, the BREAK statement exit the WHILE loop immediately once the condition specified in the IF statement is met. All the statements between the BREAK and END keywords are skipped.

Do WHILE LOOP in SQL procedure?

The WHILE statement defines a set of statements to be executed until a condition that is evaluated at the beginning of the WHILE loop is false. The while-loop-condition (an expression) is evaluated before each iteration of the loop.

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Which is better cursor or WHILE LOOP in SQL Server?

While SQL While loop is quicker than a cursor, reason found that cursor is defined by DECLARE CURSOR. Every emphasis of the loop will be executed inside system memory and consuming required server assets.

How do you write a for loop in PL SQL?

PL/SQL For Loop Example 2

  1. DECLARE.
  2. VAR1 NUMBER;
  3. BEGIN.
  4. VAR1:=10;
  5. FOR VAR2 IN 1..10.
  6. LOOP.
  7. DBMS_OUTPUT.PUT_LINE (VAR1*VAR2);
  8. END LOOP;

How do I loop through a comma delimited string in SQL?

2 Answers

  1. Create the Target database.
  2. Determine how many elements are in the list of tables.
  3. Loop through each element of the list of tables using the ELT() function.
  4. Take each element and form SQL Statement to create the new table in Target DB.

How do I select all rows in SQL?

To select rows using selection symbols for character or graphic data, use the LIKE keyword in a WHERE clause, and the underscore and percent sign as selection symbols. You can create multiple row conditions, and use the AND, OR, or IN keywords to connect the conditions.

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