oracle的存储过程语法(转)

1、ORA-00942: table or view does not exist 指的你要操作的表尚未存在,需要先create出来先。

2、ORA-00922: missing or invalid option 指的是有语法错误。遗漏了分号什么的

3、Warning: Procedure created with compilation errors

比如  create or replace procedure p_test_pro1 is     begin       insert into loginuser(username,passwd) values(‘admin‘,‘123‘);     end                -------这里遗漏了分号     /   Warning: Procedure created with compilation errors   SQL> show error  --显示出具体的错误所在 Errors for PROCEDURE SCOTT.P_TEST_PRO1:   LINE/COL ERROR -------- ---------------------------------------------------------------------------------------------------- 6/0      PLS-00103: Encountered the symbol "end-of-file" when expecting one of the following:       ; <an identifier> <a double-quoted delimited-identifier>     delete exists prior <a single-quoted SQL string>  The symbol ";" was substituted for "end-of-file" to continue. 

4、ORA-06576: not a valid function or procedure name     存储过程p_test_pro1尚未创建

call p_test_pro1    ORA-06576: not a valid function or procedure name

 

5、ORA-06502: PL/SQL: numeric or value error: character to number conversion error ORA-06512: at "SCOTT.P_TEST_PRO1", line 6 ORA-06512: at line 2

 

create or replace procedure p_test_pro1 IS                v_pass varchar2(20);            begin                select passwd into v_pass from loginuser where rownum=1;                dbms_output.put_line(‘密码是:‘+v_pass);             end;

当调用p_test_pro1的时候报以上错误,把输出语句中的+改为||

 

 在谈存储过程书写中的一些规则时,先看一下执行它的规则,在命令窗口执行存储过程sp_get_product_prompt       set serveroutput on      var ret1 varchar2(200);      var ret2 varchar2(200);      exec sp_get_product_prompt(83,:ret1,:ret2); --或execute      print ret1;      print ret2;            set serveroutput on      declare         ret1 varchar2(200);         ret2 varchar2(200);      begin         sp_get_product_prompt(83,ret1,ret2);         dbms_output.put_line(ret1);         dbms_output.put_line(ret2);      end;

存储过程入参,不论类型,缺省情况下值都为null,入参和出参不能有长度,其中关键字as可以替换成is,存储过程中变量声明在as和begin之间,同时,存储过程中可以再调用其它的存储过程,如果要保证存储过程之间的事务处理不受影响,可以定义为自治事务。      create or replace procedure say_hello(        v_name in varchar2,        v_flag number,        o_ret out number      )      as      begin        if v_name is null and v_flag is null then --v_name和v_flag都等于null            o_ret := 10;        else            o_ret := 100;         end if;      end;

对于入参为null情况下给予缺省值      create or replace procedure say_hello(        i_name in varchar2,        i_flag number,        o_ret out number      )      as        v_name  varchar2(100);      begin        if i_name is null then            v_name := ‘0‘;        else           v_name := i_name;        end if;        insert into phone(..,wname..,) values(..,v_name,..);              end; 或直接在insert语句中调用nvl函数赋缺省值      insert into phone(..,wname..,) values(..,nvl(v_name,‘ ‘),..); ----如果将‘ ‘写成‘‘,则insert进来的v_name值还是为‘‘等价于null值

带一个参数的存储过程    输入参数in,输入参数不能进行:=赋值,但可以将它赋给as后面定义的变量;    输入参数in,可以作为变量进行条件判断;    默认不写就是in;    存储过程没有重载,这个有参的say_hello会替代已经存在的无参say_hello。

     create or replace procedure say_hello(v_name in varchar2)      as      begin         --v_name:=‘a‘; --存储过程入参v_name不能做为赋值目标         dbms_output.put_line(‘hello ‘||v_name);       end;

存储过程输入参数作为变量进行条件判断      create or replace procedure say_hello(         i_opFlag in number      )      as         v_name varchar2(100);      begin         if i_opFlag = 1 then     v_name :=‘0‘;          else     v_name :=‘haha‘;         end if;          dbms_output.put_line(‘hello ‘||v_name);       end;

利用存储过程中定义的变量对入参的空值处理:      create or replace procedure say_hello(         i_name in varchar2      )      as         v_name varchar2(100);      begin         if i_name is null then     v_name :=‘0‘;          else     v_name :=i_name;--将入赋值给定义变量         end if;          dbms_output.put_line(‘hello ‘||v_name);       end;

多个参数的存储过程      create or replace procedure say_hello(         v_first_name in varchar2,         v_last_name in varchar2)      as      begin         dbms_output.put_line(‘hello ‘||v_first_name||‘.‘||v_last_name);      end;

out输出参数,用于利用存储过程给一个或多个变量赋值,类似于返回值      create or replace procedure say_hello(         v_name in varchar2,         v_content out varchar2      )      begin         v_content:=‘hello‘||v_name;      end;

     调用:      declare         v_con varchar2(200);         v_in varchar2(20):=‘wang‘;      begin         say_hello(v_in,v_con);         dbms_output.put_line(v_con);      end;

in out参数,既赋值又取值      create or replace procedure say_hello(v_name in out varchar2)      as      begin         v_name:=‘hi ‘||v_name;      end;

     调用:      declare         v_inout varchar2(20):=‘wangsu‘;      begin         say_hello(v_inout);         dbms_output.put_line(v_inout);      end;

对存储过程入参赋缺省值      create or replace procedure say_hello(         v_name varchar2 default ‘susu‘,         v_content varchar2 default ‘hello‘      )      as      begin         dbms_output.put_line(v_name||‘ ‘||v_content);      end;

     调用:(用指明形参名的方式调用更好)      begin         say_hello();      end;      或      begin         say_hello(‘cheng‘);      end;      或      begin      say_hello(v_name=>‘cheng‘);     end;

http://regedit-123.iteye.com/blog/1075151

oracle的存储过程语法(转),布布扣,bubuko.com

oracle的存储过程语法(转)

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