SELECT CASE WHEN INSTR('Hello, World!', ',') > 0 THEN SUBSTR('Hello, World!', INSTR('Hello, World!', ',') + 1) ELSE 'Special character not found' END AS Substring_After_Comma FROM DUAL; 这个查询在找不到逗号时返回'Special character not found'。你可以根据实际需求调整这个逻辑。
正如您所说，地址最多可以有2个部分（长度为35个字符），函数接受整个地址作为第一个参数，地址部分（1...
Put a space after every characterSELECT testcol,REGEXP_REPLACE(testcol, '(.)', '\1 ') RESULT FROM test WHERE testcol like 'S%'; Replace multiple spaces with a single spaceSELECTREGEXP_REPLACE('500 Oracle Parkway, Redwood Shores, CA', '( ){2,}', ' ') RESULT FROM dual; Insert a...
Anchoring CharactersCharacterClass Description^Anchor the expressiontothestartofa line $ Anchor the expressiontotheendofa line 十一、官方说明(英文原版说明) Equivalence Classes Character Class Description = = Oracle supports the equivalence classes through the POSIX '[==]' syntax. A base letter and al...
java.io包包含一个“PrintStream”类,该类有两种格式方法,可以用来替换“print”和“println”。这些方法“format”和“printf”彼此等效。熟悉的“系统”。out”恰好是“PrintStream”对象,因此您可以在“System.out”上调用“PrintStream”方法。因此,您可以在代码中以前使用过“print”或“println”的任何地方使用“for...
一个选项可能是拆分字符串，提取4个字符并将其聚合回来：这看起来1.字符串的开头或逗号1.然后是四个...
This example will return 'TechOnTheNet ' because it will extract all non-whitespace characters as specified by (\S*) and then the first whitespace character as specified by (\s). The result will include both the first word as well as the space after the word. If you didn't want to ...
一个选项可能是拆分字符串，提取4个字符并将其聚合回来：这看起来1.字符串的开头或逗号1.然后是四个...
TRANSFORM_VALUE ERROR_LOG_SAMPLE[DBMS_TYPE:regexp_replace("DBMS_TYPE",'Oracle','PostgreSQL')] or to replace all Oracle char(0) in a string by a space character: TRANSFORM_VALUE CLOB_TABLE[CHARDATA:translate("CHARDATA", chr(0), ' ')] The expression will be applied in the SQL stateme...
Substring to Find: ' ' is the space character we are looking for within the target string. Result: The function returns the position of the first occurrence of the space character within the string. Since the first space in the string 'THIS IS THE THING' appears after the word 'THIS', ...