How to run a delete query from JSC

Question

There is a simple way to run this:
delete from some_table where condition
this statement will delete from 0 to n rows, depending on condition.
Regards.

Answer 1

There is a simple way to run this:
delete from some_table where condition
this statement will delete from 0 to n rows,
depending on condition.
If you want to first
select ... from some_table where condition
then delete one or more of those rows, the
"Accessing databases: Performing Inserts, Updates, and Deletes" tutorial has some hints.
If you just want to just execute a statement , such as
any delete or update, then just use standard JDBC.
For example:
// Obtain a connection
InitialContext ctx = new InitialContext();
DataSource ds = (DataSource) ctx.lookup("jdbc/<CreatorDataSourceName>");
Connection conn = ds.getConnection();
// make and execute the statement
Statement stmt = conn.createStatement();
stmt.execute("delete from xxx where ...");
// find out how many rows were deleted.
int rowsAffected = stmt.getUpdateCount() ;
// Don't forget to close() in a finally clause!!!
conn.close() ;