EMPNAME Valid Email FIELD_WITH_VALID_EMAIL --- --- --- John Doe johndoe@example.com 1 Jane Doe Live SQL: REGEXP_INSTRのパターン一致で、Oracle Live SQLに関連する例を参照および実行します 前のページ 次のページ
In this tutorial, you will learn how to use the Oracle REGEXP_INSTR() function to search for a substring in a string using a regular expression pattern.
Oracle数据库中的REGEXP_INSTR函数的语法是: REGEXP_INSTR (source_char,pattern[, position [, occurrence [, return_option [, match_parameter ] ] ] ] ) 參数 source_char 搜索值的字符表达式,能够是不论什么数据类型CHAR,VARCHAR2,NCHAR,NVARCHAR2,CLOB或NCLOB的。 pattern 正則表達式 position 可选。 搜...
Oracle数据库中的REGEXP_INSTR函数的语法是: REGEXP_INSTR(source_char,pattern[,position[,occurrence[,return_option[,match_parameter]]]) 1. 參数 source_char 搜索值的字符表达式,能够是不论什么数据类型CHAR,VARCHAR2,NCHAR,NVARCHAR2,CLOB或NCLOB的。 pattern 正則表達式 position 可选。 搜索在字符串中的開...
对于本地联系人条件,我需要使用一个regexp_like函数来搜索逗号分隔数字字符串中的数字字符串,即搜索字符串中的'234‘,例如’1234,2345,6789,234‘,它应该只返回具有完全匹配而不是部分匹配的记录我已经在Oracle中测试了我的regexp_like语法和我正在使用的模式,并给出了我期望的结果。尽管遵循了给出的的说明。我...
In the following example, REGEXP_INSTR searches a string that contains a phone number for the first occurrence of a pattern that contains three consecutive digits: polardb=# SELECT REGEXP_INSTR('800-555-1212', '[0-9][0-9][0-9]', 1, 1) FROM DUAL; regexp_instr --- 1 (1 row)...
The following example returns the positions of the first and last characters of the fourth subexpressionanBof the expression(Oc)(e(anB)(ase))in the stringOceanBase. obclient> SELECT REGEXP_INSTR('OceanBase', '(Oc)(e(anB)(ase))',1, 1, 0, 'i', 3) "first", REGEXP_INSTR('OceanBase...
Examples: Oracle REGEXP_INSTR function The following example findS the position of the first 't' character in a string. SELECT REGEXP_INSTR ('The web development Tutorial', 't') FROM dual; Sample Output: REGEXP_INSTR('THEWEBDEVELOPMENTTUTORIAL','T') --- 19 The above example will return...
Example 1 : REGEXP_SUBSTRThe data in a column is free text, but may include a 4 digit year.DROP TABLE t1; CREATE TABLE t1 ( data VARCHAR2(50) ); INSERT INTO t1 VALUES ('FALL 2014'); INSERT INTO t1 VALUES ('2014 CODE-B'); INSERT INTO t1 VALUES ('CODE-A 2014 CODE-D'); ...
The REGEXP_INSTR function can be used in the following versions of Oracle/PLSQL: Oracle 12c, Oracle 11g, Oracle 10g Example - Match on Single Character Let's start by looking at the simplest case. Let's find the position of the first 't' character in a string. ...