DatabaseMetaData: getColumns(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern)

 

import java.sql.Connection;
import java.sql.DatabaseMetaData;
import java.sql.DriverManager;
import java.sql.ResultSet;

public class Main {
  private static final String DRIVER = "com.mysql.jdbc.Driver";

  private static final String URL = "jdbc:mysql://localhost/testdb";

  private static final String USERNAME = "root";

  private static final String PASSWORD = "";

  public static void main(String[] args) throws Exception {
    Class.forName(DRIVER);
    Connection connection = DriverManager.getConnection(URL, USERNAME, PASSWORD);

    DatabaseMetaData metadata = connection.getMetaData();
    ResultSet resultSet = metadata.getColumns(null, null, "users", null);
    while (resultSet.next()) {
      String name = resultSet.getString("COLUMN_NAME");
      String type = resultSet.getString("TYPE_NAME");
      int size = resultSet.getInt("COLUMN_SIZE");

      System.out.println("Column name: [" + name + "]; type: [" + type + "]; size: [" + size + "]");
    }
    connection.close();
  }
}

Related examples in the same category

1.	DatabaseMetaData.columnNullable
2.	DatabaseMetaData: getCatalogs()
3.	DatabaseMetaData: getDatabaseMajorVersion()
4.	DatabaseMetaData: getDatabaseMinorVersion()
5.	DatabaseMetaData: getDatabaseProductName()
6.	DatabaseMetaData: getDatabaseProductVersion()
7.	DatabaseMetaData: getDefaultTransactionIsolation()
8.	DatabaseMetaData: getDriverName()
9.	DatabaseMetaData: getDriverVersion()
10.	DatabaseMetaData: getExportedKeys(String catalog, String schema, String table)
11.	DatabaseMetaData: getImportedKeys(String catalog, String schema, String table)
12.	DatabaseMetaData: getIndexInfo(String catalog, String schema, String table, boolean unique, boolean approximate)
13.	DatabaseMetaData: getJDBCMajorVersion()
14.	DatabaseMetaData: getJDBCMinorVersion()
15.	DatabaseMetaData: getMaxCharLiteralLength()
16.	DatabaseMetaData: getMaxRowSize()
17.	DatabaseMetaData: getMaxStatementLength()
18.	DatabaseMetaData: getMaxTablesInSelect()
19.	DatabaseMetaData: getMaxTableNameLength()
20.	DatabaseMetaData: getNumericFunctions()
21.	DatabaseMetaData: getPrimaryKeys(String catalog, String schema, String table)
22.	DatabaseMetaData: getProcedures(String catalog, String schemaPattern, String procedureNamePattern)
23.	DatabaseMetaData: getProcedureTerm()
24.	DatabaseMetaData: getSchemas()
25.	DatabaseMetaData: getSQLKeywords()
26.	DatabaseMetaData: getStringFunctions()
27.	DatabaseMetaData: getSystemFunctions()
28.	DatabaseMetaData: getTableTypes()
29.	DatabaseMetaData: getTablePrivileges(String catalog, String schemaPattern, String tableNamePattern)
30.	DatabaseMetaData: getTables(String catalog, String schemaPattern, String tableNamePattern, String[] types)
31.	DatabaseMetaData: getTimeDateFunctions()
32.	DatabaseMetaData: getTypeInfo()
33.	DatabaseMetaData: getURL()
34.	DatabaseMetaData: getUserName()
35.	DatabaseMetaData: nullsAreSortedHigh()
36.	DatabaseMetaData: supportsANSI92EntryLevelSQL()
37.	DatabaseMetaData: supportsANSI92FullSQL()
38.	DatabaseMetaData: supportsANSI92IntermediateSQL()
39.	DatabaseMetaData: supportsBatchUpdates()
40.	DatabaseMetaData: supportsCoreSQLGrammar()
41.	DatabaseMetaData: supportsExtendedSQLGrammar()
42.	DatabaseMetaData: supportsFullOuterJoins()
43.	DatabaseMetaData: supportsMinimumSQLGrammar()
44.	DatabaseMetaData: supportsMixedCaseQuotedIdentifiers()
45.	DatabaseMetaData: supportsPositionedDelete()
46.	DatabaseMetaData: supportsResultSetConcurrency(int type, int concurrency)
47.	DatabaseMetaData: supportsResultSetHoldability(int holdability)
48.	DatabaseMetaData: supportsResultSetType(int type)
49.	DatabaseMetaData: supportsStatementPooling()
50.	DatabaseMetaData: supportsTableCorrelationNames()
51.	DatabaseMetaData: supportsTransactionIsolationLevel(int level)
52.	DatabaseMetaData: supportsTransactions()

DatabaseMetaData: getColumns(String catalog, String schemaPattern, String tableNamePattern, String columnNamePattern) : DatabaseMetaData « java.sql « Java by API

Related examples in the same category