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By default, || is a synonym for the OR logical operator (although this is deprecated). Note that the pipe concatenation operator first needs to be enabled before you can use it in this manner. In this case, I appended a space to the first argument. This example uses the concatenation operator ( ||): SELECT 'Player ' || 456
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+-+-+ The Pipe Concatenation Operator ( ||) If the argument contains any binary string, the result is a binary string. If all arguments are nonbinary strings, the result is a nonbinary string. If any parameter is NULL, the return value is NULL. We can include a space, either by adding a space to the existing string, or by concatenating including a third argument that consists solely of a space: SELECTĬONCAT('Player', ' ', 456) AS "Option 2" ) function in MySQL returns a string resulting from the connection parameters, possibly with one or more parameters. Any numeric value is converted to its equivalent nonbinary string form. Although this is a string function, it can handle numeric (and binary string) arguments. The CONCAT() function concatenates its arguments. We can use the pipe concatenation operator ( ||), which concatenates its operands.īelow are examples of each.We can use the CONCAT() function, which concatenates its arguments.The above example won’t work in SQL Server.There are a couple of approaches we can use to concatenate strings and numbers in MySQL. Note that in MySQL, you will need to enable the pipe concatenation operator first. If you’re using SQLite, this is your only option. Most RDBMSs include a string concatenation operator that concatenates its operands.
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SQLite and Oracle don’t have a CONCAT_WS() function, but they do have a string concatenation operator (see below). RDBMSs that have a CONCAT_WS() function include MySQL, MariaDB, SQL Server, and PostgreSQL. In such cases, you only need to specify the separator once. This function can be particularly useful if you have a lot of strings to concatenate: SELECT CONCAT_WS(', ', 'Red', 'Green', 'Orange', 'Blue') This function allows you to specify a separator that will be used to separate all concatenated strings.Įxample: SELECT CONCAT_WS(' ', 'Bangkok', 'Breaking') The CONCAT_WS() FunctionĪnother way to include a space between the strings is to use the CONCAT_WS() function. SQLite doesn’t include a CONCAT() function, but it does have a string concatenation operator (see below). For example: mysql> SELECT tech on the net. RDBMSs that have a CONCAT() function include MySQL, MariaDB, SQL Server, Oracle, and PostgreSQL. You can also concatenate expressions together in MySQL by placing the strings next to each other. With this function, if we want to include a space between the strings, we’d need to either add a space to one of the strings, or include a space as a separate argument: SELECTĬONCAT('Bangkok ', 'Breaking') AS "Option 1",ĬONCAT('Bangkok', ' ', 'Breaking') AS "Option 2" If the argument is numeric, it is converted. Returns a binary string, if the arguments include any binary strings. Returns a nonbinary string, if all arguments are nonbinary strings. Returns the string that results from concatenating the arguments. Generally, non-string arguments are converted to a string before the concatenation occurs.Įxample: SELECT CONCAT('Bangkok', 'Breaking') MySQL CONCAT () function is used to add two or more strings. Most major RDBMSs provide a CONCAT() function for concatenating its string arguments.