Start SQL-Update query on click

Question

Hi,
I would like to start in a JSP am JSTL-Update when the user clicks on a button.
Unfortunately, I have not found any hint how to do that!
Can someone give me some advise how this can be done?
I have the following code:
<sql:setDataSource dataSource="jdbc:oracle:thin:@<IP-address>:1521:<SID>,oracle.jdbc.driver.OracleDriver,<user>,<password>" var="datasource1"/>
<sql:update var="insert1" sql="insert into table (column1,column2,column3,column4) select sysdate,column1,column2,column3 from <table2>" dataSource="${datasource1}"/>
But I have no idea how to associate it with the click on a button.
Best regards.

Answer 1

What proportion of each column has a -1 value?
Will the -1 value be in only one of the columns for each row or could there be multiple -1 values in a row?
How big is the table?
If only a small portion has a -1 and only one column per row could have -1, then seperate updates might be more efficient since only the columns that require updating will be touched. On the other hand, if several columns in a row could have -1 or if most rows would have at least one column with a -1, a single update might be more efficient since each row that requires multiple updates would only be touched once.
John