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; 或 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