The plus sign (+) is the string concatenation operator that enables string concatenation. All other string manipulation is handled by using string functions such asSUBSTRING. By default, an empty string is interpreted as an empty string in INSERT or assignment statements on data of thevarchardata ...
Remarks The + (String Concatenation) operator behaves differently when it works with an empty, zero-length string than when it works with NULL, or unknown values. A zero-length character string can be specified as two single quotation marks without any characters inside the quotation marks. A z...
The output is shown below: 复制 Value: Name=[Adjustable Race] Value: Name=[All-Purpose Bike Stand] Value: Name=[AWC Logo Cap] Value: Name=[BB Ball Bearing] Value: Name=[Bearing Ball] See Also Concepts Operators (Entity SQL) Other Resources String Concatenation Operator中文...
Remarks SET@v1+= 'expression' is equivalent to SET@v1=@v1+ 'expression'. The += operator cannot be used without a variable. For example, the following code will cause an error: SELECT 'Adventure' += 'Works' Examples The following example concatenates using the += operator. Copy DECLARE...
In this query, I will return concatenated results only for specific employees by using IDs in the WHERE clause with theIN operator: Copy to clipboard SELECTid,CONCAT('Employee: ', emp_name,'||',' Salary = $', emp_salary,'& Age is ', emp_age) ...
<string> SIMILAR TO <similar to pattern> [ESCAPE <escape character>] Concatenation This operator is used to concatenate one or more strings as shown in the following table. OperationResult 'SQL'||'stream' SQLstream 'SQL'||''||'stream' ...
String OperatorsPDF You can use string operators for streaming SQL, including concatenation and string pattern comparison, to combine and compare strings. OperatorUnary/BinaryDescriptionNotes || B Concatenation Also applies to binary types LIKE B String pattern comparison <string> LIKE <like ...
binary_operator An operator that defines the way two expressions are combined to yield a single result.binary_operatorcan be an arithmetic operator, the assignment operator (=), a bitwise operator, a comparison operator, a logical operator, the string concatenation operator (+), or a unary opera...
binary_operator An operator that defines the way two expressions are combined to yield a single result.binary_operatorcan be an arithmetic operator, the assignment operator (=), a bitwise operator, a comparison operator, a logical operator, the string concatenation operator (+), or a unary opera...
binary_operator can be an arithmetic operator, the assignment operator (=), a bitwise operator, a comparison operator, a logical operator, the string concatenation operator (+), or a unary operator. For more information about operators, see Operators. ranking_windowed_function Any Transact-SQL ...