To pass user-defined variables to a MySQL command, you can use the
SET statement to assign a value to a variable before executing the command. Here's an example:
In this example, we assign the value
'myValue' to the variable
@myVariable using the
SET statement. Then, we use the variable in the
WHERE clause of the
SELECT statement to filter the results.
You can also pass variables directly as command-line arguments using the
--bind option when executing the
mysql command. For example:
mysql --bind myVariable='myValue' -e "SELECT * FROM myTable WHERE column = ?myVariable"
Here, we pass the value
'myValue' directly as a command-line argument using the
--bind option, and then reference it as
?myVariable in the SQL command.