20260821230656

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

@@ -0,0 +1,47 @@
+import java.io.FileInputStream;
+import java.sql.*;
+import java.util.Properties;
+public class BUserStruct {
+    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"))) {
+            System.out.println("== b_user column definitions ==");
+            String sql =
+                "SELECT c.name AS col, t.name AS type, c.max_length, c.precision, c.scale, c.is_nullable, " +
+                "       c.is_identity, dc.definition AS default_def, c.column_id " +
+                "FROM sys.columns c " +
+                "JOIN sys.types t ON t.user_type_id = c.user_type_id " +
+                "LEFT JOIN sys.default_constraints dc ON dc.parent_object_id = c.object_id AND dc.parent_column_id = c.column_id " +
+                "WHERE c.object_id = OBJECT_ID('b_user') ORDER BY c.column_id";
+            try (Statement st = conn.createStatement(); ResultSet rs = st.executeQuery(sql)) {
+                while (rs.next()) {
+                    String type = rs.getString("type");
+                    int maxLen = rs.getInt("max_length");
+                    String typeSql;
+                    if (type.equals("nvarchar") || type.equals("nchar") || type.equals("varchar") || type.equals("char")) {
+                        typeSql = type + (maxLen == -1 ? "(max)" : "(" + (maxLen / (type.startsWith("n") ? 2 : 1)) + ")");
+                    } else if (type.equals("decimal") || type.equals("numeric")) {
+                        typeSql = type + "(" + rs.getInt("precision") + "," + rs.getInt("scale") + ")";
+                    } else { typeSql = type; }
+                    System.out.printf("  col=%-22s %-16s null=%s identity=%s default=%s%n",
+                            rs.getString("col"), typeSql, rs.getBoolean("is_nullable"),
+                            rs.getBoolean("is_identity"), rs.getString("default_def"));
+                }
+            }
+            System.out.println("== b_user 001/002 data ==");
+            try (Statement st = conn.createStatement();
+                 ResultSet rs = st.executeQuery("SELECT * FROM b_user WHERE b_account IN ('001','002')")) {
+                ResultSetMetaData meta = rs.getMetaData();
+                while (rs.next()) {
+                    StringBuilder sb = new StringBuilder();
+                    for (int i = 1; i <= meta.getColumnCount(); i++) {
+                        if (i > 1) sb.append(", ");
+                        sb.append(meta.getColumnName(i)).append("=").append(rs.getObject(i));
+                    }
+                    System.out.println("  " + sb);
+                }
+            }
+        }
+    }
+}