日期:2014-05-16 浏览次数:20623 次
   REM Single line comment 
   -- Single line comment
   /* Single line comment */
   /* 
     Multi Line
     comment
   */
补充:REM是REMARK的缩写
那么REM和--的区别是什么?
--或者/* */可以用于PL/SQL,但REM[ark]不可以。
下边这段可以在SQL*PLUS中执行成功
REM comment
-- comment
/* comment */
begin
   DBMS_OUTPUT.PUT_LINE('Test'); --comment
   DBMS_OUTPUT.PUT_LINE('Test'); /* comment */
end; 
/但下边这段就不行begin
   DBMS_OUTPUT.PUT_LINE('Test'); REM comment
end; 
/
begin
   REM comment
   DBMS_OUTPUT.PUT_LINE('Test');
end; 
/转载请注明出处:http://blog.csdn.net/pan_tian/article/details/7745666You can enter comments in a script in three ways:
using the SQL*Plus REMARK command for single line comments.
using the SQL comment delimiters /*... */ for single or multi-line comments.
using ANSI/ISO (American National Standards Institute/International Standards Organization) comments - - for single line comments.
======EOF======