WHILE condition LOOP statements; END LOOP;Code language: PostgreSQL SQL dialect and PL/pgSQL (pgsql) In this syntax, the condition is a boolean expression that evaluates to TRUE, FALSE or NULL. The WHILE loop s
The syntax for the WHILE Loop is: WHILE condition LOOP {.statements.} END LOOP; You would use a WHILE Loop when you are not sure how many times you will execute the loop body. Since the WHILE condition is evaluated before entering the loop, it is possible that the loop body maynotexec...
Introduction to PL/pgSQL while loop statement The while loop statement executes one or more statements as long as a specified condition is true. Here’s the basic syntax of a while loop statement: [ <> ] while condition loop statements; end loop; In this syntax, PostgreSQL evaluates ...
Introduction to PL/pgSQL Loop statement The loop defines an unconditional loop that executes a block of code repeatedly until terminated by an exit or return statement. The following illustrates the syntax of the loop statement: <> loop statements; end loop; Typically, you use an if statement ...
PL/SQLには、「文字列が次のソース行へ続く」ことを意味する行継続文字がありません。文字列を次のソース行へ続けた場合、文字列に改行文字が含まれます。 たとえば、次のPL/SQLコードの場合: BEGIN DBMS_OUTPUT.PUT_LINE('This string breaks here.'); END; / 次のように印刷されます。 This...
LOOPstatements execute a sequence of statements multiple times. The loop encloses the sequence of statements that is to be repeated. PL/SQL provides four kinds of loop statements: basic loop,WHILEloop,FORloop, and cursorFORloop. For more information, see"Iterative Control: LOOP and EXIT Statemen...
syntax : IF condition1 THEN action1; [ELsIF condition2 THEN action2; [ELSE action3;] END IF; eg : IF condition THEN SQL or PL-SQL Commands; ELSE SQL or PL-SQL Statements; END IF; eg : DECLARE l_x NUMBER := 10; l_y NUMBER := 20; ...
Syntax This is the syntax for the exit statement used in PostgreSQL: exit [label] [when boolean_expression]; The above code contains theexitkeyword and label of the loop with the condition on which the loop will be terminated. The following code block contains the exit keyword with the when...
In the preceding syntax, target can be a record variable or a comma-separated list of simple variables and record fields. The select_expressions list and the remainder of the command are the same as in regular SQL. If a variable list is used as target, the selected values must exactly mat...
If you are using Git or Subversion (SVN) for version control, you can now make use of the built-in version control functions in PL/SQL Developer.The version control status of a file (untracked, added, modified, unchanged, …) will be displayed in window status lines, in File Browser ...