How do I disallow NULL values in a table?

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Is it possible to connect to multiple databases? Using single statement can we update or extract data from two or three or many databases?

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how to use CallableStatement? specially how to use their index given ..

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What are the different types of lockings in jdbc?

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What is hbm xml?

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What class.forname does, while loading the drivers?

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How can we retrieve data from the resultset?

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What is resultset in jdbc with example?

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dear friends I have made connection with SQLSERVER where the following code is compiling properly but giving error at the runtime . I think error in this line where i am sending the value through string Connection connection = DriverManager.getConnection ( "jdbc:microsoft:sqlserver://localhost:1433","sa",""); import java.sql.*; //import mssqlserver.*; public class TestSQLCON { public TestSQLCON() throws Exception { // Get connection DriverManager.registerDriver(new com.microsoft.jdbc.sqlserver.SQLServerDriver()); System.out.println(); System.out.println("Successfully connected one"); System.out.println(); Connection connection = DriverManager.getConnection ( "jdbc:microsoft:sqlserver://localhost:1433","sa",""); if (connection != null) { System.out.println(); System.out.println("Successfully connected"); System.out.println(); // Meta data DatabaseMetaData meta = connection.getMetaData(); System.out.println("\nDriver Information"); System.out.println("Driver Name: " + meta.getDriverName()); System.out.println("Driver Version: " + meta.getDriverVersion()); System.out.println("\nDatabase Information "); System.out.println("Database Name: " + meta.getDatabaseProductName()); System.out.println("Database Version: "+ meta.getDatabaseProductVersion()); } } public static void main (String args[]) throws Exception { TestSQLCON test = new TestSQLCON(); } } so please help me

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How does a custom RowSetReader get called from a CachedRowSet?

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What is jdbc url for mysql?

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When do we get java.sql.SQLException: No suitable driver found?

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