Java JDBC, using parameters in a SQL delete Statement with Java JDBC
In Java JDBC, use parameters in and SQL Statement to delete specific records with Java JDBC
Why Use Parameters in Java JDBC?
It makes your SQL Statement flexibly.
E.g.: I code a Client id into the SQL Statement, e.g.
Select from Users where userid = 1;
But now I will always delete user 1 , but what if I don't know whic user to program in to the SQL Statement, then I do the following:
Select from Users where userid = ?;
JDBC will then, every time that you execute the delete statement, replace the ? with a variable value for the userid.
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