適用於:SQL Server Azure SQL 資料庫 Azure SQL 受控執行個體 Azure Synapse Analytics Analytics Platform System (PDW) Microsoft Fabric 的 SQL 端點分析 Microsoft Fabric 的倉儲 此函式會傳回透過以端對端方式串連 (或聯結) 兩個以上字串值所產生的字串。 注意 若要在串連期間新增分隔值,請使用 CONCAT_WS...
STRING_SPLIT# 说明:将字符串分割为列 STRING_SPLIT(str_val) 实例: SELECTvalueFROMSTRING_SPLIT('1,2,3,4,5,6,7,8,9,10',','); 结果: 实例: SELECTvalueFROMSTRING_SPLIT('dog cat fish bird lizard',' '); 结果: STRING_AGG# 说明:将选中的多个列合并到一个行中 STRING_AGG(ColumnName, Con...
String函数 TSQL支持以下字符串函数: 函数 返回类型 CONCAT VARCHAR INITCAP VARCHAR LENGTH INTEGER LOWER VARCHAR LPAD VARCHAR LTRIM VARCHAR REGEXP_REPLACE VARCHAR RPAD VARCHAR RTRIM VARCHAR STRPOS INTEGER SUBSTR VARCHAR TRIM VARCHAR UPPER VARCHAR 示例 ...
直接调用wm_concate就可以。 SELECTGROUPID,WM_CONCATE(STRING)FROMGROUPSGROUPBYGROUPID 在T-SQL中,我没找到类似的内置函数,所以只能用别的方法实现。一下是一种比较常见的解决方案。 SELECT groupid, STUFF((SELECT ',' + string AS [text()] FROM dbo.Groups AS G2 WHERE G2.groupid = G1.groupid O...
SQL 复制 DECLARE @string_exp NVARCHAR(4000) = 'Returns the length.'; SELECT {fn BIT_LENGTH( @string_exp )}; -- Returns 304 SELECT {fn CONCAT( 'CONCAT ','returns a character string')}; -- Returns CONCAT returns a character string SELECT {fn CURRENT_DATE( )}; -- Returns ...
This function returns a string resulting from the concatenation, or joining, of two or more string values in an end-to-end manner. Note To add a separating value during concatenation, use CONCAT_WS. Transact-SQL syntax conventions Syntax syntaxsql Copy CONCAT ( argument1 , argument2 [ , ...
This function returns a string resulting from the concatenation, or joining, of two or more string values in an end-to-end manner. Note To add a separating value during concatenation, use CONCAT_WS. Transact-SQL syntax conventions Syntax syntaxsql Copy CONCAT ( argument1 , argument2 [ , ...
Also, we did not want to utilize SQLCLR so the usage of the GROUP_CONCAT CLR UDA was ruled out. Now, here is a much better way to refactor the above concatenation ‘loop’ into the below: SELECT STUFF(( SELECT ',' + FirstName + LastName FROM AdventureWorks2016CTP3.Person.Person FOR...
表示可同时由多个线程访问的键/值对的线程安全集合。C# 复制 public class ConcurrentDictionary<TKey,TValue> : System.Collections.Generic.ICollection<System.Collections.Generic.KeyValuePair<TKey,TValue>>, System.Collections.Generic.IDictionary<TKey,TValue>, System.Collections.Generic.IEnumerable<System....
表示可同时由多个线程访问的键/值对的线程安全集合。C# 复制 public class ConcurrentDictionary<TKey,TValue> : System.Collections.Generic.ICollection<System.Collections.Generic.KeyValuePair<TKey,TValue>>, System.Collections.Generic.IDictionary<TKey,TValue>, System.Collections.Generic.IEnumerable<System....