Oracle 基础语法

一、基础语法
基本
create or replace procedure [proc name]
as
begin

end ;

带参以及输出参数

create or replace procedure [proc name] ([param name] [ data type]
, [ out param name] out [ data type])
as
begin

end ;

局部变量

create or replace procedure [proc name] ([param name] [ data type]
, [ out param name] out [ data type])
as
[var name] [datatype] ;
begin

end ;

普通赋值与select赋值

create or replace procedure [proc name] ([param name] [ data type]
, [ out param name] out [ data type])
as
[var name] [datatype] ;
begin
[var name] := [value];
select [field name list] into [var name]
from
where ...
end ;

游标
(for循环)
declare
cursor [cursor name] as
select [field list] from ....;
[rec] [cursor name]%rowtype;
begin
for  [rec] in [cursor name]
loop
dbms_output.put_line([rec].[field name] );
end loop ;
end;
(fetch循环)
declare
cursor [cursor name] as
select [field list] from ....;
[rec] [cursor name]%rowtype;
begin
open [cursor name];
loop
fetch [cursor name] into [rec];
exit when [cursor name]%notfound;
dbms_output.put_line([rec].[field name]);
end loop;
close [cursor name];
end;

============================

if语句

if then

end if ;

====
if then
//
else
//

end if ;

====
if then
//
elsif [condition] then
//
else
//

end if ;