oracle正则表达式

ORACLE中的支持正则表达式的函数主要有下面四个：
1，REGEXP_LIKE ：与LIKE的功能类似
2，REGEXP_INSTR ：与INSTR的功能类似
3，REGEXP_SUBSTR ：与SUBSTR的功能类似
4，REGEXP_REPLACE ：与REPLACE的功能类似
它们在用法上与Oracle SQL 函数LIKE、INSTR、SUBSTR 和REPLACE 用法相同，
可是它们使用POSIX 正则表达式代替了老的百分号（%）和通配符（_）字符。
POSIX 正则表达式由标准的元字符（metacharacters）所构成：
'^' 匹配输入字符串的开始位置，在方括号表达式中使用，此时它表示不接受该字符集合。
'$' 匹配输入字符串的结尾位置。若是设置了 RegExp 对象的 Multiline 属性，则 $ 也匹配 '\n' 或 '\r'。
'.' 匹配除换行符以外的任何单字符。
'?' 匹配前面的子表达式零次或一次。
'+' 匹配前面的子表达式一次或屡次。
'*' 匹配前面的子表达式零次或屡次。
'|' 指明两项之间的一个选择。例子'^([a-z]+|[0-9]+)$'表示全部小写字母或数字组合成的
字符串。
'( )' 标记一个子表达式的开始和结束位置。
'[]' 标记一个中括号表达式。
'{m,n}' 一个精确地出现次数范围，m=<出现次数<=n，’{m}’表示出现m次，’{m,}’表示至少出现m次。
\num 匹配 num，其中 num 是一个正整数。对所获取的匹配的引用。
字符簇：
[[:alpha:]] 任何字母。
[[:digit:]] 任何数字。
[[:alnum:]] 任何字母和数字。
[[:space:]] 任何白字符。
[[:upper:]] 任何大写字母。
[[:lower:]] 任何小写字母。
[[:punct:]] 任何标点符号。
[[:xdigit:]] 任何16进制的数字，至关于[0-9a-fA-F]。
各类操做符的运算优先级
/转义符
(), (?:), (?=), [] 圆括号和方括号
*, +, ?, {n}, {n,}, {n,m} 限定符
^, $, anymetacharacter 位置和顺序
|
*/

--建立表
create table fzq
(
id varchar(4),
value varchar(10)
);
--数据插入
insert into fzq values
('1','1234560');
insert into fzq values
('2','1234560');
insert into fzq values
('3','1b3b560');
insert into fzq values
('4','abc');
insert into fzq values
('5','abcde');
insert into fzq values
('6','ADREasx');
insert into fzq values
('7','123 45');
insert into fzq values
('8','adc de');
insert into fzq values
('9','adc,.de');
insert into fzq values
('10','1B');
insert into fzq values
('10','abcbvbnb');
insert into fzq values
('11','11114560');
insert into fzq values
('11','11124560');
--regexp_like
--查询value中以1开头60结束的记录而且长度是7位
select * from fzq where value like '1____60';
select * from fzq where regexp_like(value,'1....60');
--查询value中以1开头60结束的记录而且长度是7位而且所有是数字的记录。
--使用like就不是很好实现了。
select * from fzq where regexp_like(value,'1[0-9]{4}60');
-- 也能够这样实现，使用字符集。
select * from fzq where regexp_like(value,'1[[:digit:]]{4}60');
-- 查询value中不是纯数字的记录
select * from fzq where not regexp_like(value,'^[[:digit:]]+$');
-- 查询value中不包含任何数字的记录。
select * from fzq where regexp_like(value,'^[^[:digit:]]+$');
--查询以12或者1b开头的记录.不区分大小写。
select * from fzq where regexp_like(value,'^1[2b]','i');
--查询以12或者1b开头的记录.区分大小写。
select * from fzq where regexp_like(value,'^1[2B]');
-- 查询数据中包含空白的记录。
select * from fzq where regexp_like(value,'[[:space:]]');
--查询全部包含小写字母或者数字的记录。
select * from fzq where regexp_like(value,'^([a-z]+|[0-9]+)$');
--查询任何包含标点符号的记录。
select * from fzq where regexp_like(value,'[[:punct:]]');1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556复制代码

例子：判断姓名是否为空，少于两个字符，包含数字和字母

create or replace
FUNCTION CheckName(NameStr in VARCHAR2) RETURN integer
As
BEGIN
--符合返回1，不符合返回0
   if(NameStr is null or length(NameStr)<2) then
      return 0;
   else
      if(NameStr like '%未取名%') then
       RETURN 0;
       end if;
       if regexp_like(NameStr,'^([a-z]+|[0-9]+|[A-Z]+)$') then
       return 0;
       end if; 
       return 1;      
   end if;
END CheckName; 
123456789101112131415161718复制代码

例子：

create or replace procedure p_jh_cbs_oc_datagenerate(ddate  in varchar2,result_code out varchar2,
                                                         result_info out varchar2) is
      v_ddate varchar2(8);
      v_sql   varchar2(4000);
    begin
      if ddate is null then
        v_ddate := to_char(sysdate - 1, 'YYYYMMDD');
      elsif length(ddate) = 8 then
        v_ddate := ddate;
      else
        result_code := '9999';
        result_info := '日期输入不合法,进程终止';
        return;
      end if;
      begin
        execute immediate 'truncate table t_v_sql';
        v_sql := 'insert into t_dc_order_center_detail (ACCEPT_DATE, CITY_CODE, CHANNEL_CODE, TRADE_ID, PAY_MODE, PAPAY_DEPAR, PAY_STATE, PAY_DATE, PAY_ORDERID, PAY_FEE, ORDER_FEE, ORDER_SOURCE, ADVANCE_PAY, SHIP_MODE, SHIPPING_ID, TRADE_STATE, TRADE_TYPE_CODE, PRODUCT_ID, PRODUCT_NAME, SERIAL_NUMBER, ACCOUT_ID, ACCOUT_NAME, TRADE_STAFF_ID, TRADE_STAFFNAME, DEVELOP_NAME, DEVELOP_ID, REMARK, USER_TYPE, CUST_NAME, PSPT_ID, INVALID_DATE, INPUT_DATE, ORDER_TYPE, RELATION_ORDERS, PROPT_CODE, PROP_VALUE, IMPORT_DATE, RESV1, RESV2, RESV3, RESV4, RESV5) select ACCEPT_DATE, CITY_CODE, CHANNEL_CODE, TRADE_ID, PAY_MODE, PAPAY_DEPAR, PAY_STATE, PAY_DATE, PAY_ORDERID, PAY_FEE, ORDER_FEE, ORDER_SOURCE, ADVANCE_PAY, SHIP_MODE, SHIPPING_ID, TRADE_STATE, TRADE_TYPE_CODE, PRODUCT_ID, PRODUCT_NAME, SERIAL_NUMBER, ACCOUT_ID, ACCOUT_NAME, TRADE_STAFF_ID, TRADE_STAFFNAME, DEVELOP_NAME, DEVELOP_ID, REMARK, USER_TYPE, CUST_NAME, PSPT_ID, INVALID_DATE, INPUT_DATE, ORDER_TYPE, RELATION_ORDERS, PROPT_CODE, PROP_VALUE, IMPORT_DATE, RESV1, RESV2, DECODE((SELECT DEVELOP_ID FROM DUAL WHERE REGEXP_LIKE(DEVELOP_ID,''''(WX|KF|DX|ZW) '''')),'',''''2'''',''''3'''' )) RESV3, RESV4, RESV5 from t_dc_order_center where ACCEPT_DATE=' || '''' ||
                 v_ddate || '''';
        -- insert into t_v_sql (v_sql) values (v_sql);
        commit;
        execute immediate v_sql;
        commit;
        v_sql := 'INSERT INTO T_DC_CB_BS_TRADE_DETAIL ( TRADE_ID, SUBSCRIBE_ID, BPM_ID, TRADE_TYPE_CODE, IN_MODE_CODE, PRIORITY, SUBSCRIBE_STATE, NEXT_DEAL_TAG, PRODUCT_ID, BRAND_CODE, USER_ID, CUST_ID, USECUST_ID, ACCT_ID, USER_DIFF_CODE, NET_TYPE_CODE, SERIAL_NUMBER, CUST_NAME, ACCEPT_DATE, ACCEPT_MONTH, TRADE_STAFF_ID, TRADE_DEPART_ID, TRADE_CITY_CODE, TRADE_EPARCHY_CODE, TERM_IP, EPARCHY_CODE, CITY_CODE, OLCOM_TAG, EXEC_TIME, FINISH_DATE, OPER_FEE, FOREGIFT, ADVANCE_PAY, INVOICE_NO, FEE_STATE, FEE_TIME, FEE_STAFF_ID, CANCEL_TAG, CANCEL_DATE, CANCEL_STAFF_ID, CANCEL_DEPART_ID, CANCEL_CITY_CODE, CANCEL_EPARCHY_CODE, CHECK_TYPE_CODE, CHK_TAG, AUDIT_TAG, AUDIT_BATCH_NO, ACTOR_NAME, ACTOR_CERTTYPEID, ACTOR_PHONE, ACTOR_CERTNUM, CONTACT, CONTACT_PHONE, CONTACT_ADDRESS, REMARK, IF_MAINTENANCE, ORDER_ID, SUB_ORDER_ID, MAIN_DISCNT_CODE, PRODUCT_SPEC, STANDARD_KIND_CODE, IMPORT_DATE, SYS_TYPE ) select TRADE_ID, SUBSCRIBE_ID, BPM_ID, TRADE_TYPE_CODE, IN_MODE_CODE, PRIORITY, SUBSCRIBE_STATE, NEXT_DEAL_TAG, PRODUCT_ID, BRAND_CODE, USER_ID, CUST_ID, USECUST_ID, ACCT_ID, USER_DIFF_CODE, NET_TYPE_CODE, SERIAL_NUMBER, CUST_NAME, ACCEPT_DATE, ACCEPT_MONTH, TRADE_STAFF_ID, TRADE_DEPART_ID, TRADE_CITY_CODE, TRADE_EPARCHY_CODE, TERM_IP, EPARCHY_CODE, CITY_CODE, OLCOM_TAG, EXEC_TIME, FINISH_DATE, OPER_FEE, FOREGIFT, ADVANCE_PAY, INVOICE_NO, FEE_STATE, FEE_TIME, FEE_STAFF_ID, CANCEL_TAG, CANCEL_DATE, CANCEL_STAFF_ID, CANCEL_DEPART_ID, CANCEL_CITY_CODE, CANCEL_EPARCHY_CODE, CHECK_TYPE_CODE, CHK_TAG, AUDIT_TAG, AUDIT_BATCH_NO, ACTOR_NAME, ACTOR_CERTTYPEID, ACTOR_PHONE, ACTOR_CERTNUM, CONTACT, CONTACT_PHONE, CONTACT_ADDRESS, REMARK, IF_MAINTENANCE, ORDER_ID, SUB_ORDER_ID, MAIN_DISCNT_CODE, PRODUCT_SPEC, STANDARD_KIND_CODE, IMPORT_DATE, ''BSS'' FROM T_DC_BSS_TRADE where to_char(ACCEPT_DATE,''YYYYMMDD'')=' || '''' ||
                 v_ddate || '''';
        --insert into t_v_sql (v_sql) values (v_sql);
        commit;
        execute immediate v_sql;
        v_sql := 'INSERT INTO t_dc_cb_bs_trade_detail (USER_ID, USER_DIFF_CODE, USECUST_ID, TRADE_TYPE_CODE, TRADE_STAFF_ID, TRADE_ID, TRADE_EPARCHY_CODE, TRADE_DEPART_ID, TRADE_CITY_CODE, TERM_IP, SUB_ORDER_ID, SUBSCRIBE_STATE, SUBSCRIBE_ID, STANDARD_KIND_CODE, SERIAL_NUMBER, REMARK, PROVINCE_CODE, PRODUCT_SPEC, PRODUCT_ID, PRIORITY, ORDER_ID, OPER_FEE, OLCOM_TAG, NEXT_DEAL_TAG, NET_TYPE_CODE, MAIN_DISCNT_CODE, IN_MODE_CODE, INVOICE_NO, IMPORT_DATE, IF_MAINTENANCE, FOREGIFT, FINISH_DATE, FEE_TIME, FEE_STATE, FEE_STAFF_ID, EXEC_TIME, CUST_NAME, CUST_ID, CONTACT_PHONE, CONTACT_ADDRESS, CONTACT, CHK_TAG, CHECK_TYPE_CODE, CANCEL_TAG, CANCEL_STAFF_ID, CANCEL_EPARCHY_CODE, CANCEL_DEPART_ID, CANCEL_DATE, CANCEL_CITY_CODE, BRAND_CODE, BPM_ID, AUDIT_TAG, AUDIT_BATCH_NO, ADVANCE_PAY, ACTOR_PHONE, ACTOR_NAME, ACTOR_CERTTYPEID, ACTOR_CERTNUM, ACCT_ID, ACCEPT_MONTH, ACCEPT_DATE, SYS_TYPE ) SELECT USER_ID, USER_DIFF_CODE, USECUST_ID, TRADE_TYPE_CODE, TRADE_STAFF_ID, TRADE_ID, TRADE_EPARCHY_CODE, TRADE_DEPART_ID, TRADE_CITY_CODE, TERM_IP, SUB_ORDER_ID, SUBSCRIBE_STATE, SUBSCRIBE_ID, STANDARD_KIND_CODE, SERIAL_NUMBER, REMARK, PROVINCE_CODE, PRODUCT_SPEC, PRODUCT_ID, PRIORITY, ORDER_ID, OPER_FEE, OLCOM_TAG, NEXT_DEAL_TAG, NET_TYPE_CODE, MAIN_DISCNT_CODE, IN_MODE_CODE, INVOICE_NO, IMPORT_DATE, IF_MAINTENANCE, FOREGIFT, FINISH_DATE, FEE_TIME, FEE_STATE, FEE_STAFF_ID, to_date(EXEC_TIME,''YYYY-MM-DD HH24:MI:SS''), CUST_NAME, CUST_ID, CONTACT_PHONE, CONTACT_ADDRESS, CONTACT, CHK_TAG, CHECK_TYPE_CODE, CANCEL_TAG, CANCEL_STAFF_ID, CANCEL_EPARCHY_CODE, CANCEL_DEPART_ID, CANCEL_DATE, CANCEL_CITY_CODE, BRAND_CODE, BPM_ID, AUDIT_TAG, AUDIT_BATCH_NO, ADVANCE_PAY, ACTOR_PHONE, ACTOR_NAME, ACTOR_CERTTYPEID, ACTOR_CERTNUM, ACCT_ID, ACCEPT_MONTH, ACCEPT_DATE, ''CBSS'' FROM t_dc_cbss_trade where to_char(ACCEPT_DATE,''YYYYMMDD'')=' || '''' ||
                 v_ddate || '''';
        -- insert into t_v_sql (v_sql) values (v_sql);
        commit;
        execute immediate v_sql;
        commit;
      end;
      commit;
      result_code := '0000';
      result_info := '存储过程执行完成';
    exception
      when others then
        result_code := '9999';
        result_info := '存储过程执行出错，错误以下:' || sqlerrm;
        dbms_output.put_line('存储过程执行出错，错误以下:' || sqlerrm);
        rollback;
    end;复制代码