STUFF函数的语法如下: STUFF(character_expression,start,length,replaceWith_expression) SQL Copy 其中,character_expression是要进行替换的字符串,start是替换的起始位置,length是要替换的字符数,replaceWith_expression是替换后的字符串。 下面是一个示例,假设我们仍然要删除名字字符串中的第一个字...
In addition, we can use the RIGHT() function with theLENGTH()function to remove the firstncharacters from a string or column by extracting all characters from the right after thenth character: RIGHT(Column, LENGTH(Column) - n) whereColumnis the column’s name to extract or remove characters...
In PostgreSQL, we use the SUBSTRING function to remove the last two characters: SELECT SUBSTRING(name FROM 1 FOR LENGTH(name) - 2) AS modified_name FROM Departments;Copy This query extracts a substring from the name column, starting from the first character up to two characters before the en...
within a string literal keyword or value are preserved. Single or double quotation marks may be used within a connection string without using delimiters (for example, Data Source= my'Server or Data Source= my"Server), unless a quotation mark character is the first or last character in the ...
The above query should remove the string ‘New York’ from the table. The resulting set is as shown: Notice the New York records have been removed. SQL Translate Function In Standard SQL, we can use the translate() function to remove a character from a string. The function syntax is as...
If supplied as a variable (@database_name_var), this name can be specified either as a string constant (@database_name_var=database name) or as a variable of character string data type, except for the ntext or text data types. Note The mirror database in a database mirroring ...
Specify a parameter name by using an at sign (@) as the first character. The parameter name must comply with the rules for identifiers. Parameters are local to the function; the same parameter names can be used in other functions. Parameters can take the place only of constants; they can...
This Transact-SQL extension to DELETE allows specifying data from and deleting the corresponding rows from the table in the first FROM clause.This extension, specifying a join, can be used instead of a subquery in the WHERE clause to identify rows to be removed.For more information, see...
NAMECEILCEILINGCENTROIDCHAINCHANGECHANNELCHARCHARACTERCHARSETCHECKCHECKSUMCIPHERCLASS_ORIGINCLIENTCLOSECOALESCE...
/* Retrieve the first character in the string */ DBMS_OUTPUT.put_line ( SUBSTR (l_company_name, 1, 1)); /* Retrieve the last character in the string */ DBMS_OUTPUT.put_line ( SUBSTR (l_company_name, -1, 1)); /* Retrieve three characters, ...