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PreparedStatement

Sreeni Gundla
Greenhorn

Joined: Dec 21, 2009
Posts: 7
PreparedStatement are pre compiled statements could you please let me know what it is.
xsunil kumar
Ranch Hand

Joined: Dec 14, 2009
Posts: 133
Precompiled :-

Below are the steps involved to execute normal query using Java.
1.Java code will transfer the query to database
2. Database will compile the query.
3. Database will execute the query.

For prepared statement, first time all three steps will take part but from 2nd time onwards, step 1 and 3 only takes part in execution. Step -2 will be eliminated.

But for statement all thee steps will take part in execution of a query. It means that prepared statement is pre-compiled. Due to this, prepared statement is better in view of performace and in view of sql injection both.
Rob Spoor
Sheriff

Joined: Oct 27, 2005
Posts: 19755
    
  20

Moving to JDBC.


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subject: PreparedStatement