notebookvb

Medicus/MedicusWithClaude/inspect_table.py

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+import fdb
+import sys
+
+table = sys.argv[1] if len(sys.argv) > 1 else 'DEKURS'
+
+conn = fdb.connect(
+    dsn=r'localhost:c:\medicus 3\data\medicus.fdb',
+    user='SYSDBA', password='masterkey', charset='win1250'
+)
+cur = conn.cursor()
+
+cur.execute("""
+    SELECT rf.rdb$field_name, f.rdb$field_type, f.rdb$field_length
+    FROM rdb$relation_fields rf
+    JOIN rdb$fields f ON rf.rdb$field_source = f.rdb$field_name
+    WHERE rf.rdb$relation_name = ?
+    ORDER BY rf.rdb$field_position
+""", (table,))
+cols = cur.fetchall()
+print(f"=== {table} – sloupce ===")
+for c in cols:
+    print(f"  {c[0].strip():<30} typ: {c[1]}  délka: {c[2]}")
+
+cur.execute(f'SELECT COUNT(*) FROM {table}')
+print(f"\nPočet záznamů: {cur.fetchone()[0]}")
+
+cur.close()
+conn.close()