oracle正则表达式regexp_like的用法详解
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的功能相似
2，REGEXP_INSTR ：与INSTR的功能相似
3，REGEXP_SUBSTR ：与SUBSTR的功能相似
4，REGEXP_REPLACE ：与REPLACE的功能相似
它们在用法上与Oracle SQL 函数LIKE、INSTR、SUBSTR 和REPLACE 用法相同，
但是它们使用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。如果设置了 RegExp 对象的 Multiline 属性，则 $ 也匹配 '\n' 或 '\r'。
'.' 匹配除换行符之外的任何单字符。
'?' 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多次。
'*' 匹配前面的子表达式零次或多次。
'|' 指明两项之间的一个选择。例子'^([a-z]+|[0-9]+)$'表示所有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，相当于[0-9a-fA-F]。
各种操作符的运算优先级
/转义符
(), (?:), (?=), [] 圆括号和方括号
*, +, ?, {n}, {n,}, {n,m} 限定符
^, $, anymetacharacter 位置和顺序
|
*/
--创建表
create table fzq
(
id varchar(4),
value varchar(10)
);
--数据插入
insert into fzq values
('1','1234560');
insert into fzq values
('2','1234560');
insert into fzq values
('3','1b3b560');
insert into fzq values
('4','abc');
insert into fzq values
('5','abcde');
insert into fzq values
('6','ADREasx');
insert into fzq values
('7','123 45');
insert into fzq values
('8','adc de');
insert into fzq values
('9','adc,.de');
insert into fzq values
('10','1B');
insert into fzq values
('10','abcbvbnb');
insert into fzq values
('11','11114560');
insert into fzq values
('11','11124560');
--regexp_like
--查询value中以1开头60结束的记录并且长度是7位
select * from fzq where value like '1____60';
select * from fzq where regexp_like(value,'1....60');
--查询value中以1开头60结束的记录并且长度是7位并且全部是数字的记录。
--使用like就不是很好实现了。
select * from fzq where regexp_like(value,'1[0-9]{4}60');
-- 也可以这样实现，使用字符集。
select * from fzq where regexp_like(value,'1[[:digit:]]{4}60');
-- 查询value中不是纯数字的记录
select * from fzq where not regexp_like(value,'^[[:digit:]]+$');
-- 查询value中不包含任何数字的记录。
select * from fzq where regexp_like(value,'^[^[:digit:]]+$');
--查询以12或者1b开头的记录.不区分大小写。
select * from fzq where regexp_like(value,'^1[2b]','i');
--查询以12或者1b开头的记录.区分大小写。
select * from fzq where regexp_like(value,'^1[2B]');
-- 查询数据中包含空白的记录。
select * from fzq where regexp_like(value,'[[:space:]]');
--查询所有包含小写字母或者数字的记录。
select * from fzq where regexp_like(value,'^([a-z]+|[0-9]+)$');
--查询任何包含标点符号的记录。
select * from fzq where regexp_like(value,'[[:punct:]]');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;
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，错误如下:' || sqlerrm;
dbms_output.put_line('存储过程执行出错，错误如下:' || sqlerrm);
rollback;
end;