Remove Unique Column in Database Table : Column « Database SQL JDBC « Java

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Java » Database SQL JDBC » Column Screenshots  Remove Unique Column in Database Table    import java.sql.Connection; import java.sql.DriverManager; import java.sql.Statement; public class Main {   public static void main(String[] argv) throws Exception {     Class.forName("com.mysql.jdbc.Driver");     Connection con = DriverManager.getConnection("jdbc:mysql://localhost:3306/jdbctutorial",         "root", "root");     Statement st = con.createStatement();     int n = st.executeUpdate("ALTER TABLE mytable DROP INDEX col");     System.out.println("Query OK, " + n + " rows affected.");   } }             Related examples in the same category 1. Get Column Corresponding Class Name 2. Get Column Detail Information 3. Get Column Display Size.zip 4. Get Column Label 5. Get Column Name 6. Use DatabaseMetaData to get table column names 7. Get Column Name And Type For A Table 8. Get Column Name From ResultSet Metadata 9. Get Column Number Of Digits To Right Of The Decimal Point 10. Get Column Number Of Presions Number Of Decimal Digits 11. Get Column ORDINAL POSITION 12. Get Column Privileges 13. Get Column Size 14. Get Column Sql Data Type 15. Get Column SQL Type Name 16. Get Column Type 17. Get Table Optimal Set Of Columns 18. Is Column A Cash Value 19. Is Column Auto Increase 20. Is Column Case Sensitive 21. Is Column Definitely Writable 22. Is Column Nullable 23. Is Column Nullable From ResultSet Metadata 24. Is Column Readonly 25. Is Column Searchable 26. Is Column Signed Number 27. Is Column Writable 28. Make Unique Column in Database Table 29. Arrange a Column of Database Table 30. Change Column Name of a Table 31. Sum of Column in a Database Table 32. Delete a Column from a Database Table 33. Adding a New Column Name in Database Table 34. Designated column's table name 35. If a table column can have a null value or not? 36. If a table column value is auto-increment? 37. Get Column Names From ResultSet for MySQL