Zero or More--Star The zero or more operator'*', matches zero or more occurrences of the preceding character or subexpression. For example, to find--'a', followed by zero or more occurrences of 'b', then followed by 'c'--use the regular expression: ab*c This expression matches all ...
SELECT REGEXP_SUBSTR('2014年\01月\10日 Welcome,new YEAR2014', '[[:alnum:]]+') FROM DUAL; SELECT regexp_substr('2014年\01月\10日 Welcome,new YEAR2014', '[[:alnum:]]+', 1, 2) FROM dual; SELECT regexp_substr('2014年\01月\10日 Welcome,new YEAR2014', '[[:alnum:]]+', ...
例如: select * from taccount t where regexp_like(t.vc_code, '[a-zA-Z]');
REGEXP_REPLACE 的格式如下所示 语法: --4.REGEXP_REPLACE 与 REPLACE 函数相同,替换原字符串中的字符内容 REGEXP_REPLACE(srcstr, pattern [,replacestr [, position [, occurrence [,match_option]]]) 4.1 查找替换空格符 SELECT regexp_replace('Help Earth Stay Green', '[[:blank:]]{2,8}', ' ...
REGEXP_LIKE REGISTER REJECT REKEY RELATIONAL RELY REMOTE_MAPPED RENAME REPAIR REPLACE REQUIRED RESET RESETLOGS RESIZE RESOLVE RESOLVER RESOURCE RESTORE RESTORE_AS_INTERVALS RESTRICT RESTRICTED RESTRICT_ALL_REF_CONS RESUMABLE RESUME RETENTION RETURN RETURNING REUSE REV...
9', '78.9');insert into test_num values('-123', '-123');commit;3、查询表中全量数据;select t.*, rowid from test_num t;4、编写语句,只查询字段ID全为数字的记录,可以发现结果中只有一条记录;select t.*, rowid sec from test_num t where not regexp_like(id,'\D');...
--1.REGEXP_SUBSTR与SUBSTR函数相同,返回截取的子字符串 REGEXP_SUBSTR(srcstr, pattern [, position [, occurrence [, match_option]]]) 注: srcstr源字符串 pattern正则表达式样式 position开始匹配字符位置 occurrence匹配出现次数 match_option匹配选项(区分大小写) ...
when regexp_like(str, '[A-Za-z]$') then 16 substr(str, 1, length(str) - 1) 17 end 18 from t;STR CASEWHENREGEXP_LIK--- ---25KD789 25KD78925KD789KK 25KD789KK25KD789K 25KD789
regexp_substr(to_char(t5.des),'[^|]+',1,44) 服务器路径 /usr/local/his/tomcat/webapps/webroot/WEB-INF/reportlets oracle分组排序 语法格式:row_number() over(partition by 分组列 order by 排序列 desc) row_number() over()分组排序功能: ...
REGEXP_LIKE REGISTER REJECT REKEY RELATIONAL RELY REMOTE_MAPPED RENAME REPAIR REPLACE REQUIRED RESET RESETLOGS RESIZE RESOLVE RESOLVER RESOURCE RESTORE RESTORE_AS_INTERVALS RESTRICT RESTRICTED RESTRICT_ALL_REF_CONS RESUMABLE RESUME RETENTION RETURN RETURNING REUSE REV...