Oracle/PLSQL FOR Loop Oracle/PLSQL: FOR Loop The syntax for the FOR Loop is: FOR loop_counter IN [REVERSE] lowest_number..highest_number LOOP {.statements.} END LOOP; You would use a FOR Loop when you want to execute the loop body a fixed number of times. 译:当你需循环体执行一定...
Here’s the syntax for the WHILE loop statement: 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 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 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 ...
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 ...
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 cl...
The following illustrates the syntax of the cursor FOR LOOP statement: FOR record IN cursor_name LOOP process_record_statements; END LOOP; Code language: PostgreSQL SQL dialect and PL/pgSQL (pgsql) 1) record The record is the name of the index that the cursor FOR LOOP statement declares im...
Oracle %rowtype的用法以及for loop和Log4plsql 博客分类: oracleOracleHTML Oracle %rowtype的用法: 表示该类型为行数据类型,存储的是一行数据,一行数据里可以有多列,类似于表里的一行数据,也可以是游标里的一行数据,如: vs_row1 表%rowtype; vs_row2 游标%rowtype; for loop: The syntax for the ...
属性值,它是不可为空的 Another problem is your syntax for interpolated string ($"") "var sqlCommand = $"EXEC [CCAdmin].[spName] @vehicleName = '{VehicleName}'" which is not correct 当使用interpolated string ($"")在存储过程中传递参数时,您可能不需要使用@vehicleName我们在SQL中使用的这个...
一、Loopforloopsyntax: 1、数字范围语法 for VARIABLE in 1 2 3 4 5 .. N do command1 command2 commandN done 或者 for VARIABLE in file1 file2 file3 do command1 on $VARIABLE command2 commandN done 或者 linux shell loop 原创 Art_Hero ...