One of the most powerful functions in SQL that deals with string operations is the REGEXP_REPLACE() function. This function allows us to perform the regular expression-based search and replace. If you are familiar with regular expression, you know how powerful this function can be. In this t...
-- 建立正则表达式测试函数 CREATE FUNCTION dbo.RegExpTest ( @source VARCHAR(5000), --需要匹配的源字符串 @regexp VARCHAR(1000), --正则表达式 @ignorecase BIT = 0 --是否区分大小写,默认为false ) RETURNS BIT --返回结果0-false,1-true AS BEGIN --0(成功)或非零数字(失败),是由 OLE 自动化...
SELECT regexp_replace('abc', '(b)(c)', '$2$1'); 上述SQL返回的是acb 将第二个捕获组和第一个捕获组的呼唤了。 regexp_replace(string,pattern,function)→varchar Replaces every instance of the substring matched by the regular expressionpatterninstringusingfunction. Thelambda expressionfunctionis ...
Learn the syntax of the regexp_count function of the SQL language in Databricks SQL and Databricks Runtime.
SQL REGEXP_LIKE() function supported Oracle SQL versionOracle 11g Oracle 12c Oracle 18c SyntaxREGEXP_LIKE(original_string, pattern [ , match_param ] )Parametersoriginal_string is a string which we want to represent in regular expression pattern. pattern is a regular expression pattern. match_...
create or replace FUNCTION CheckName(NameStr in VARCHAR2) RETURN integer A s 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;
Learn the syntax of the regexp_substr function of the SQL language in Databricks SQL and Databricks Runtime.
代码语言:txt 复制 function regexpContains(text, pattern) { return new RegExp(pattern).test(text); } // 使用示例 const text = "Hello, world!"; const pattern = /world/; console.log(regexpContains(text, pattern)); // 输出: true ...
The Oracle/PLSQL REGEXP_COUNT function counts the number of times that a pattern occurs in a string. This function, introduced in Oracle 11g, will allow you to count the number of times a substring occurs in a string using regular expression pattern matching. ...
The REGEXP_LIKE function is used to find the matching pattern from the specific string. Let us create a table named Employee and add some values in the table. Example 1:User wants to fetch the records, which contains letter ‘J’. ...