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Retreiving data from Table_A and at the same time inserting into Table_A

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I want to retreive data from a database and insert into the same database but a different table on the database.
The idea is I want to treive data from Table_A and regarding what I have in the resultSet ,I'll insert into Table_2 that's the second table in the same database,I try using vector as a placeholder for the resultSet but accessing all the data from the first row to the last row is where i have an issue ,I use for loop to loop through the elements and i was able to display the last record on Table_A and I don't have clue of how to insert into Table_B
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This question doesn't make any sense in the "meaningless drivel" forum, so I'm monving it to JDBC.
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This is just a sample I am giving.
Open connection.
Read data from ResultSet to some Strings, Integers as of ur request.
Fire insert statement for each row want u read
While (Reading Table A resultSet)
//Talkeing the result row into java variables.
String ..
con.execute (Fire insert for each row into table B)
is it clear?
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