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Tip of the Day
Language: Java
Expertise: Intermediate
May 12, 1999



Building the Right Environment to Support AI, Machine Learning and Deep Learning

Limit the Number of Rows Returned When Using JDBC

If you're issuing SELECT statements to a database using Java Database Connectivity (JDBC), a huge number of records can be returned by the java.sql.ResultSet. However, sometimes you will want to limit the number of records returned. Java provides a simple mechanism for doing this: simply call the setMaxRows() method defined in the java.sql.Statement class and inherited by its subclasses. In this example, if more than 1000 records are contained in the table, then only the first 1000 returned by the query will be available through the ResultSet.
java.sql.Connection conn;
java.sql.Statement stmt = conn.createStatement();
String select = "SELECT * FROM MYTABLE";
java.sql.ResultSet rset = stmt.executeQuery(select);
Brett Spell
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