3.REGEXP_LIKE(, <pattern>, <match_parameter>) --从指定列中查询出含有2个连续空格的字段selectsource_stringfrom(select'hello, one space!'assource_stringfromdualunionallselect'hello, two space!'assource_stringfromdualunionallselect'hello, two sequential space!'assource_stringfromdual)whereregexp_...
10.2.1 REGEXP_LIKE select*fromtestwhereregexp_like(mc,'^a{1,3}');select*fromtestwhereregexp_like(mc,'a{1,3}');select*fromtestwhereregexp_like(mc,'^a.*e$');select*fromtestwhereregexp_like(mc,'^[[:lower:]] |[[:digit:]]');select*fromtestwhereregexp_like(mc,'^[[:lower:]...
The REGEXP_LIKE condition uses the input character set to evaluate strings. If you specifymatch_parametervalues that conflict, the REGEXP_LIKE condition will use the last value to break the conflict. If thematch_parameteris omitted, the REGEXP_LIKE condition will use the case-sensitivity as de...
3.REGEXP_LIKE(, <pattern>, <match_parameter>) --从指定列中查询出含有2个连续空格的字段selectsource_stringfrom(select'hello, one space!'assource_stringfromdualunionallselect'hello, two space!'assource_stringfromdualunionallselect'hello, two sequential space!'assource_stringfromdual)whereregexp_...
REGEXP_LIKE 比较字符串和正则表达式,返回t or f。 GREATEST 返回一个或多个表达式列表中的最大值。 LEAST 返回一个或多个表达式列表中的最小值。 3.8.4.1.6 转换函数 3.8.4.1.6.1 部分转换函数示例 to_number 将expr 转换为数值数据类型的值。 示例: 1、to_number(?,'xxxx'):将指定的16进制数转化成...
SYS@ocp> INSERT INTO t_regexp VALUES('the origin of the universe, is the Big'); 1 row created. SYS@ocp> INSERT INTO t_regexp VALUES('Bang.'); 1 row created. SYS@ocp> commit; Commit complete. @@@ @@@usage: regexp_like(column_name, condition) ...
SELECT REGEXP_COUNT (last_name, 't', 1, 'i') AS total FROM contacts; This would count the number of 't' or 'T' values in the last_name field from the contacts table.Example - Match on Multiple Characters Let's look next at how we would use the REGEXP_COUNT function to match ...
The Oracle REGEXP_INSTR function is used to return the location of a regular expression pattern in a string. This function allows you to find a substring in a string using regular expression pattern matching. If no match is found, then the function returns 0....
SELECT* FORM tKHXXwhereREGEXP_LIKE(SJHM,'^[1]{1}[35]{1}[[:digit:]]{9}$') 针对这个表达式解释一下 ^ 表示开始 $ 表示结束 []内部为匹配范围 {}里的内容表时个数 手机号码的特点是以 1开头接着是3或5再加9位的数字 所以这么理解
架构、表和用户名配置 include/exclude 列表不应指定任何正则表达式,因为查询是直接使用的值构建的。regex:: 查询是使用 Oracle 的 REGEXP_LIKE 运算符在数据库侧过滤模式和表名称以及使用 SQL in-clause 的用户名生成的。schema 和 table 配置 include/exclude ...