20260821230656

code/fms/.tmp-fkcheck/FkCheck.java

@@ -0,0 +1,85 @@
+import java.io.FileInputStream;
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.Statement;
+import java.util.Properties;
+
+public class FkCheck {
+    public static void main(String[] args) throws Exception {
+        Properties props = new Properties();
+        try (FileInputStream in = new FileInputStream(args[0])) {
+            props.load(in);
+        }
+        String url = props.getProperty("url");
+        String user = props.getProperty("username");
+        String pass = props.getProperty("password");
+
+        System.out.println("Connecting to: " + url);
+        Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
+        try (Connection conn = DriverManager.getConnection(url, user, pass)) {
+            System.out.println("CONNECTED: " + conn.getMetaData().getDatabaseProductName()
+                    + " " + conn.getMetaData().getDatabaseProductVersion());
+
+            // 1. Total FK count
+            try (Statement st = conn.createStatement();
+                 ResultSet rs = st.executeQuery("SELECT COUNT(*) FROM sys.foreign_keys")) {
+                rs.next();
+                System.out.println("TOTAL_FK_COUNT=" + rs.getInt(1));
+            }
+
+            // 2. FK status summary (disabled / not trusted / not for replication)
+            System.out.println("--- FK STATUS ---");
+            try (Statement st = conn.createStatement();
+                 ResultSet rs = st.executeQuery(
+                     "SELECT name, is_disabled, is_not_trusted, is_not_for_replication, create_date " +
+                     "FROM sys.foreign_keys ORDER BY name")) {
+                while (rs.next()) {
+                    System.out.printf("FK=%s disabled=%s not_trusted=%s not_for_repl=%s created=%s%n",
+                            rs.getString("name"), rs.getBoolean("is_disabled"),
+                            rs.getBoolean("is_not_trusted"), rs.getBoolean("is_not_for_replication"),
+                            rs.getTimestamp("create_date"));
+                }
+            }
+
+            // 3. FK delete/update actions
+            System.out.println("--- FK ACTIONS ---");
+            String actSql =
+                "SELECT fk.name, OBJECT_NAME(fk.parent_object_id) AS parent_table, " +
+                "       fk.delete_referential_action_desc AS del_action, " +
+                "       fk.update_referential_action_desc AS upd_action " +
+                "FROM sys.foreign_keys fk ORDER BY parent_table, fk.name";
+            try (Statement st = conn.createStatement();
+                 ResultSet rs = st.executeQuery(actSql)) {
+                while (rs.next()) {
+                    System.out.printf("%s (%s): ON DELETE %s, ON UPDATE %s%n",
+                            rs.getString("name"), rs.getString("parent_table"),
+                            rs.getString("del_action"), rs.getString("upd_action"));
+                }
+            }
+
+            // 4. FK details: parent/child columns
+            System.out.println("--- FK DETAILS ---");
+            String sql =
+                "SELECT fk.name AS fk_name, " +
+                "       OBJECT_NAME(fk.parent_object_id) AS parent_table, " +
+                "       OBJECT_NAME(fk.referenced_object_id) AS ref_table, " +
+                "       pc.name AS parent_col, rc.name AS ref_col, fkc.constraint_column_id AS ord " +
+                "FROM sys.foreign_keys fk " +
+                "JOIN sys.foreign_key_columns fkc ON fkc.constraint_object_id = fk.object_id " +
+                "JOIN sys.columns pc ON pc.object_id = fk.parent_object_id AND pc.column_id = fkc.parent_column_id " +
+                "JOIN sys.columns rc ON rc.object_id = fk.referenced_object_id AND rc.column_id = fkc.referenced_column_id " +
+                "ORDER BY parent_table, fk.name, ord";
+            try (Statement st = conn.createStatement();
+                 ResultSet rs = st.executeQuery(sql)) {
+                while (rs.next()) {
+                    System.out.printf("%s: %s(%s) -> %s(%s)%n",
+                            rs.getString("fk_name"), rs.getString("parent_table"),
+                            rs.getString("parent_col"), rs.getString("ref_table"),
+                            rs.getString("ref_col"));
+                }
+            }
+        }
+    }
+}