BEGIN--EXECUTE IMMEDIATE用法1:立刻执行 V_SQL :='create or replace view mytest as select employee_id, first_name from employees'; EXECUTE IMMEDIATE V_SQL;--EXECUTE IMMEDIATE用法2:立刻执行,并赋值给某变量 V_SQL :='select count(1) from employees'; EXECUTE IMMEDIATE V_SQL; INTO V_NUM;--EX...
--字段类型field2invarchar2,--字段名datatype2invarchar2--字段类型)asstr_sqlvarchar2(500);beginstr_sql:=’createtable’||table_name||’(’||field1||’’||datatype1||’,’||field2||’’||datatype2||’)’;executeimmediate str_sql;--动态执行DDL语句exceptionwhenothersthennull;end;...
execute immediate 'begin ' || l_routin || '(:2, :3, :4); end;' using in l_tblnam, out l_cnt, in out l_status; if l_status != 'OK' then dbms_output.put_line('error'); end if; end; 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. === http://space.itpub.net/...
EXECUTE IMMEDIATE语句用于在PL/SQL程序中动态执行SQL语句。以下是一个使用EXECUTE IMMEDIATE的示例: DECLARE sql_stmt VARCHAR2(200); emp_name VARCHAR2(100); BEGIN sql_stmt := 'SELECT ename FROM emp WHERE empno = 7839'; EXECUTE IMMEDIATE sql_stmt INTO emp_name; DBMS_OUTPUT.PUT_LINE('Employee nam...
execute immediate的简单用法(oracle),直接上示例代码:createorreplaceprocedureproc_test(--参数区域)is--变量区域--sql脚本v_sqlvarchar2(2000):='';--记录学生数量v_numnumber;begin--执行区域--executei
在Oracle中,可以使用EXECUTE IMMEDIATE语句来执行动态SQL语句。EXECUTE IMMEDIATE语句允许在运行时动态地构建和执行SQL语句。 以下是一个示例,演示了如何执行动态SQL语句: DECLARE sql_stmt VARCHAR2(1000); emp_name VARCHAR2(100); BEGIN -- 构建动态SQL语句 sql_stmt := 'SELECT employee_name FROM employees ...
在Oracle 数据库的数据血缘/数据沿袭分析过程中,我们会碰到 execute immediate SQL 语句。被 execute immediate 执行的语句通常以字符串的形式出现,例如: BEGINexecuteimmediate'INSERT INTO small_ordersSELECT o.order_id oid, o.customer_id cid, o.order_total ottl,o.sales_rep_id sid, c.credit_limit cl,...
SQL> BEGIN 2 EXECUTE IMMEDIATE ( 'SELECT * FROM test_dysql WHERE id=1' );3 END;4 / PL/SQL procedure successfully completed.execute immediate 是用于在 存储过程里面. 动态的执行 SQL 语句。例如:有个存储过程, 用于检索表的行数。 传入的参数是 表的名称。这种情况下,你 SEL...
EXECUTE IMMEDIATE -- 用法例子 1. 在PL/SQL运行DDL语句 begin execute immediate 'set role all';end;2. 给动态语句传值(USING 子句)declare l_depnam varchar2(20) := 'testing';l_loc varchar2(10) := 'Dubai';begin execute immediate 'insert into dept values (:1, :2, :3)...
EXECUTE IMMEDIATE -- 用法例子 1. 在PL/SQL运行DDL语句 begin execute immediate 'set role all';end;2. 给动态语句传值(USING 子句)declare l_depnam varchar2(20) := 'testing';l_loc varchar2(10) := 'Dubai';begin execute immediate 'insert into dept values (:1, :2, :3)...