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What are the different types of Statements with Example?
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Regular statement (use createStatement method), prepared statement (use prepareStatement method) and callable statement (use prepareCall)
statement : Statement stmt = con.createStatement(); ResultSet rs = stmt.executeQuery(?SELECT NAME, PRICE FROM COFFEES?); String s = rs.getString(?NAME?); prepareStatement : precompiled statement String sql = " select FIRST_NAME, LAST_NAME, USER_DATA where user_id = ? "; prepareStatement pStmt = conn.prepareStatement(sql); pStmt.setLong(1, user.getUserId()); rs = pStmt.executeQuery(); String s = rs.getString(?FIRST_NAME?); callable statement : A CallableStatement object contains a call to a stored procedure. CallableStatement cs = con.prepareCall("{call SHOW_SUPPLIERS}"); ResultSet rs = cs.executeQuery(); |
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