CREATE OR REPLACE PROCEDURE 存储过程名字 ( 参数1 IN NUMBER, 参数2 IN NUMBER ) IS 变量1 INTEGER :=0; 变量2 DATE; BEGIN
BEGIN SELECT col1,col2 into 变量1,变量2 FROM typestruct where xxx; EXCEPTION WHEN NO_DATA_FOUND THEN xxxx; END; ...
IF V_TEST=1 THEN BEGIN do something END; END IF;
WHILE V_TEST=1 LOOP BEGIN XXXX END; END LOOP;
... IS CURSOR cur IS SELECT * FROM xxx; BEGIN FOR cur_result in cur LOOP BEGIN V_SUM :=cur_result.列名1+cur_result.列名2 END; END LOOP; END;
CURSOR C_USER(C_ID NUMBER) IS SELECT NAME FROM USER WHERE TYPEID=C_ID; OPEN C_USER(变量值); LOOP FETCH C_USER INTO V_NAME; EXIT FETCH C_USER%NOTFOUND; do something END LOOP; CLOSE C_USER;
create or replace procedure 存储过程名(param1 in type,param2 out type)
Begin Select count(*) into 变量1 from 表A where列名=param1; If (判断条件) then Select 列名 into 变量2 from 表A where列名=param1; Dbms_output。Put_line(‘打印信息'); Elsif (判断条件) then Dbms_output。Put_line(‘打印信息'); Else Raise 异常名(NO_DATA_FOUND); End if; Exception When others then Rollback; End;
ACCESS_INTO_NULL 未定义对象 CASE_NOT_FOUND CASE 中若未包含相应的 WHEN ,并且没有设置 ELSE 时 COLLECTION_IS_NULL 集合元素未初始化 CURSER_ALREADY_OPEN 游标已经打开 DUP_VAL_ON_INDEX 唯一索引对应的列上有重复的值 INVALID_CURSOR 在不合法的游标上进行操作 INVALID_NUMBER 内嵌的 SQL 语句不能将字符转换为数字 NO_DATA_FOUND 使用 select into 未返回行,或应用索引表未初始化的 TOO_MANY_ROWS 执行 select into 时,结果集超过一行 ZERO_DIVIDE 除数为 0 SUBSCRIPT_BEYOND_COUNT 元素下标超过嵌套表或 VARRAY 的最大值 SUBSCRIPT_OUTSIDE_LIMIT 使用嵌套表或 VARRAY 时,将下标指定为负数 VALUE_ERROR 赋值时,变量长度不足以容纳实际数据 LOGIN_DENIED PL/SQL 应用程序连接到 oracle 数据库时,提供了不 正确的用户名或密码 NOT_LOGGED_ON PL/SQL 应用程序在没有连接 oralce 数据库的情况下 访问数据 PROGRAM_ERROR PL/SQL 内部问题,可能需要重装数据字典& pl./SQL 系统包 ROWTYPE_MISMATCH 宿主游标变量与 PL/SQL 游标变量的返回类型不兼容 SELF_IS_NULL 使用对象类型时,在 null 对象上调用对象方法 STORAGE_ERROR 运行 PL/SQL 时,超出内存空间 SYS_INVALID_ID 无效的 ROWID 字符串 TIMEOUT_ON_RESOURCE Oracle 在等待资源时超时
CREATE [OR REPLACE] PROCEDURE procedure_name[(parameter_list)]{IS|AS}[local_declarations]BEGINexecutable_statements[EXCEPTIONexception_handlers]END [procedure_name];
create or replace procedure find_emp(emp_no in number:=7900)asempname varchar2(20);beginselect ename into empname from emp where empno=emp_no;dbms_output.put_line('雇员姓名是 '||empname);exceptionwhen no_data_found thendbms_output.put_line('雇员编号未找到');end find_emp;
EXECUTE procudure_name(parameters_list);
create or replace procedure test(value1 varchar2,value2 out number) is identity number; begin select sal into identity from emp where empno=value1; if identity<2000 then value2:=1000; else value2:=500; end if; end;
declare value2 number; begin test('7900',value2); dbms_output.put_line(value2); end;
create or replace procedure swap(p1 in out number,p2 in out number) is v_temp number; begin v_temp:=p1; p1:=p2; p2:=v_temp; end;
declare num1 number:=100; num2 number:=200; begin swap(num1,num2); dbms_output.put_line('num1= '||num1); dbms_output.put_line('num2= '||num2); end;
GRANT EXECUTE ON find_emp TO scott; GRANT EXECUTE ON swap TO PUBLIC;
DROP PROCEDURE procudure_name;
CREATE [OR REPLACE] FUNCTION function_name [(parameter_list)] RETURN datatype {IS|AS} [local_declarations] BEGIN executable_statements [EXCEPTION exception_handlers] END [function_name];
create or replace function fun_hello return varchar2 is begin return '朋友,您好'; end;
select fun_hello from dual;
DROP FUNCTION function_name
CREATE [OR REPLACE] PACKAGE package_name IS|AS [Public type and item declarations] [Subprogram specifications] END [package_name];
create or replace package pack_op is procedure pro_print_ename(id number); procedure pro_print_sal(id number); function fun_re_date(id number) return date; end;
CREATE [OR REPLACE] PACKAGE BODY package_name IS|AS [Public type and item declarations] [Subprogram bodies] [BEGIN Initialization_statements] END [package_name];
create or replace package body pack_op is procedure pro_print_ename(id number) is name emp.ename%type; begin select ename into name from emp where empno=id; dbms_output.put_line('职员姓名:'||name); end pro_print_ename; procedure pro_print_sal(id number) is salary emp.sal%type; begin select sal into salary from emp where empno=id; dbms_output.put_line('职员工资:'||salary); end pro_print_sal; function fun_re_date(id number) return date is bedate emp.hiredate%type; begin select hiredate into bedate from emp where empno=id; return bedate; end fun_re_date; end pack_op;
exec pack_op.pro_print_ename(7900); exec pack_op.pro_print_sal(7900); select pack_op.fun_re_date(7900) from dual;
create or replace package pack_emp is cursor cur_emp return emp%rowtype; procedure pro_cur; end pack_emp;
create or replace package body pack_emp is cursor cur_emp return emp%rowtype is select * from emp; procedure pro_cur is rec_emp emp%rowtype; begin open cur_emp; loop fetch cur_emp into rec_emp; exit when cur_emp%notfound; if rec_emp.sal<1000 then dbms_output.put_line('员工工资:'||rec_emp.sal||',需加倍努力争取提高工资'); elsif rec_emp.sal>=1000 and rec_emp.sal<2000 then dbms_output.put_line('员工工资:'||rec_emp.sal||',工资一般,争取搞个部门经理做做'); else dbms_output.put_line('员工工资:'||rec_emp.sal||',工资不错,争取搞个总经理做做'); end if; end loop; end pro_cur; end pack_emp;
exec pack_emp.pro_cur;
CREATE OR REPLACE package SCOTT.pk_wt is type mytype is ref cursor; procedure p_wt(mycs out mytype); end; CREATE OR REPLACE package BODY SCOTT.pk_wt is procedure p_wt(mycs out mytype) is r_cur mytype; begin open r_cur for select * from emp; mycs:=r_cur; end p_wt; end pk_wt;
USER_OBJECTS数据字典视图 column object_name format a18 select object_name,object_type from user_objects where object_type in ('PROCEDURE','FUNCTION','PACKAGE','PACKAGE BODY');
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