.long expression1, expression2, ..., expressionNThe .long directive generates a long integer (32-bit, two's complement value) for eachexpression into the current section. Each expression must be a 32–bit value and must evaluateto an integer value. Th…
General-Purpose Instructions The general-purpose instructions perform basic data movement, memory addressing,arithmetic and logical operations, program flow control, input/output, and string operations oninteger, pointer, and BCD data types The data t…
01.oracle体系结构 02.oracle的基本操作 03.oracle的查询 04.oracle对象 05.oracle编程 黑马oracle_day01:03.oracle的查询 09scott用户介绍 --- scott用户,密码tiger. -- 解锁scott用户 alter user scott account unlock; -- 解锁scott用户的密码[重置密码] alter user scott identified by tiger; -- 切换登录到scott用户下…
21,存储过程,简化复杂操作,增加数据独立性,提高安全性,提高性能 与函数创建对比: create or replace function fun_01(v_01 in number) return number--必须要求有返回值 as result number; begin result := power(v_01,2); return result; end; / Function created. select fun_01(9) from dual; FUN_01(9) ------…
SELECT TGTID,PHONENUM,REGISTERDATE ,to_date(REGISTERDATE,'YYYY-MM-DD HH24:MI:SS') AS T FROM WTRESSENWEB.T_AXMALL_COMMONCLIENT WHERE TGTID = '2087' AND to_date(REGISTERDATE,'YYYY-MM-DD HH24:MI:SS') > to_date('2014-07-09','yyyy-mm-dd'); 对于to_char() to_…