import java.io.FileInputStream;
import java.sql.*;
import java.util.ArrayList;
import java.util.List;
import java.util.Properties;
public class DropOrgId2 {
    public static void main(String[] args) throws Exception {
        Properties props = new Properties();
        try (FileInputStream in = new FileInputStream(args[0])) { props.load(in); }
        try (Connection conn = DriverManager.getConnection(props.getProperty("url"), props.getProperty("username"), props.getProperty("password"))) {
            conn.setAutoCommit(false);
            // collect index names first
            List<String> idxs = new ArrayList<>();
            String idxSql = "SELECT i.name FROM sys.indexes i " +
                "JOIN sys.index_columns ic ON ic.object_id = i.object_id AND ic.index_id = i.index_id " +
                "JOIN sys.columns c ON c.object_id = ic.object_id AND c.column_id = ic.column_id " +
                "WHERE i.object_id = OBJECT_ID('s_log_technical') AND c.name = 'b_org_id'";
            try (Statement st = conn.createStatement(); ResultSet rs = st.executeQuery(idxSql)) {
                while (rs.next()) idxs.add(rs.getString(1));
            }
            for (String idx : idxs) {
                try (Statement st = conn.createStatement()) {
                    st.execute("DROP INDEX [" + idx + "] ON dbo.s_log_technical");
                    System.out.println("OK: DROP INDEX " + idx);
                }
            }
            for (String tbl : new String[]{"s_log_technical", "s_log_login"}) {
                try (Statement st = conn.createStatement()) {
                    st.execute("ALTER TABLE dbo." + tbl + " DROP COLUMN b_org_id");
                    System.out.println("OK: ALTER TABLE " + tbl + " DROP COLUMN b_org_id");
                }
            }
            conn.commit();
            System.out.println("COMMITTED.");
            try (Statement st = conn.createStatement(); ResultSet rs = st.executeQuery(
                "SELECT t.name, c.name FROM sys.tables t JOIN sys.columns c ON c.object_id = t.object_id " +
                "WHERE c.name = 'b_org_id' ORDER BY t.name")) {
                boolean any = false;
                while (rs.next()) { any = true; System.out.println("STILL EXISTS: " + rs.getString(1) + "." + rs.getString(2)); }
                if (!any) System.out.println("VERIFY: no b_org_id column remains in any table");
            }
            for (String v : new String[]{"v_s_log_login", "v_s_log_technical"}) {
                try (Statement st = conn.createStatement(); ResultSet rs = st.executeQuery("SELECT TOP 1 1 FROM " + v)) {
                    System.out.println("VIEW OK: " + v + " (queryable)");
                }
            }
        }
    }
}