LTRIM, RTRIM, and TRIM Remove leading and trailing spaces. SELECT LTRIM ('abc d ') 'abc d ' STR Convert a numeric value to a string. SELECT STR(3.1415927,5,3) 3.142 Numeric expressions as input. REVERSE Return a string in reverse order. ...
The TRIM function has become an essential part of string manipulation in SQL Server. Introduced in SQL Server 2017, it allows developers and DBAs to efficiently clean strings by removing unwanted spaces or specified characters from the beginning and end. However, with the release of SQL Server 20...
It iterates through the entire input string and replaces characters with spaces until the entire input string contains only numeric values.Now, let me show you how to use this function. I want to extract numeric values from the “custom_field” column of the [Application].[People] table. ...
SELECT RTRIM('Removes trailing spaces. '); 结果集如下。 Removes trailing spaces. B. 使用变量删除尾随空格 以下示例显示如何使用 RTRIM 删除字符变量中的尾随空格。 SQL 复制 DECLARE @string_to_trim VARCHAR(60); SET @string_to_trim = 'Four spaces are after the period in this sentence. '; SE...
```sql SELECT REPLACE(' Hello World ', ' ', '') AS no_spaces_string; -- 结果: 'HelloWorld' ``` ### 4. 在 WHERE 子句中使用这些函数你还可以在查询条件中使用这些函数来过滤数据。例如,查找某个列中不包含前后空格的记录: ```sql SELECT * FROM your_table WHERE TRIM(your_column) = '...
LEN excludes trailing spaces. If that is a problem, consider using the DATALENGTH (Transact-SQL) function which does not trim the string. If processing a unicode string, DATALENGTH will return a number that may not be equal to the number of characters. The following example demonstrates LEN a...
SELECT TRIM(' leading and trailing spaces ') AS trimmed_string; UPPER() 和LOWER(): 将字符串转换为大写或小写。 SELECT UPPER(first_name) AS upper_case_name FROM employees; 2. 日期和时间函数NOW(): 获取当前日期和时间。 SELECT NOW() AS current_datetime; DATE_FORMAT(): 格式化日期。 SELEC...
2.1.2.175 T024, Spaces in binary literals 2.1.2.176 T031, BOOLEAN data type 2.1.2.177 T041, Basic LOB data type support 2.1.2.178 T041-01, BLOB data type 2.1.2.179 T041-02, CLOB data type 2.1.2.180 T041-03, POSITION, LENGTH, LOWER, TRIM, UPPER, and SUBSTRING functions ...
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CROSS APPLY ( SELECTREPLACE(REPLACE(REPLACE(REPLACE(LTRIM(RTRIM([string])), --TRIM TRAILING SPACES CHAR(9),''), --REPLACE ALL TABS WITH ZERO LENGTH STRING CHAR(10), ''), --REPLACE ALL LINE FEEDS WITH ZERO LENGTH STRING CHAR(13), ''), --REPLACE ALL CARRIAGE RETURNS WITH ZERO LENGTH...