I am using a SELECT statement to get data from a table and then insert it into another table. However the line "stmt.executeQuery(query);" is inserting the first line from the table then exits. When I comment this line out, the while loop loops through all the lines printing them out. The stacktrace isn't showing any errors. Why is this happening?
try{
String query = "SELECT * FROM "+schema_name+"."+table;
rs = stmt.executeQuery(query);
while (rs.next()) {
String bundle = rs.getString("BUNDLE");
String project_cd = rs.getString("PROJECT_CD");
String dropper = rs.getString("DROPPER");
String week = rs.getString("WEEK");
String drop_dt = rs.getString("DROP_DT").replace(" 00:00:00.0","");
query = "INSERT INTO INDUCTION_INFO (BUNDLE, PROJECT_CD, DROPPER, WEEK, DROP_DT) "
+ "VALUES ("
+ bundle+","
+ "'"+project_cd+"',"
+ dropper+","
+ week+","
+ "to_date('"+drop_dt+"','YYYY-MM-DD'))";
System.out.println(query);
stmt.executeQuery(query);
}
}catch(Exception e){
e.printStackTrace();
}
You are re-using the Statement
that was used to produce rs
on the last line of your loop.
This will close the ResultSet
rs
. As stated in the documentation:
A
ResultSet
object is automatically closed when theStatement
object that generated it is closed, re-executed, or used to retrieve the next result from a sequence of multiple results.
You need to use a second Statement
object to execute the INSERT
statements.
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