如果您正在使用SQLite3，则不支持INFORMATION_SCHEMA。使用PRAGMA table_info代替。这将返回关于表的6行信息。要获取列名(row2)，使用如下所示的for循环

cur.execute("PRAGMA table_info(table_name)")  # fetches the 6 rows of data
records = cur.fetchall() 
print(records)
for row in records:
    print("Columns: ", row[1])

如果有的话

.headers ON

你会得到你想要的结果。

-(NSMutableDictionary*)tableInfo:(NSString *)table
{
  sqlite3_stmt *sqlStatement;
  NSMutableDictionary *result = [[NSMutableDictionary alloc] init];
  const char *sql = [[NSString stringWithFormat:@"pragma table_info('%s')",[table UTF8String]] UTF8String];
  if(sqlite3_prepare(db, sql, -1, &sqlStatement, NULL) != SQLITE_OK)
  {
    NSLog(@"Problem with prepare statement tableInfo %@",[NSString stringWithUTF8String:(const char *)sqlite3_errmsg(db)]);

  }
  while (sqlite3_step(sqlStatement)==SQLITE_ROW)
  {
    [result setObject:@"" forKey:[NSString stringWithUTF8String:(char*)sqlite3_column_text(sqlStatement, 1)]];

  }

  return result;
  }

获取一个表和列的列表作为视图:

CREATE VIEW Table_Columns AS
SELECT m.tbl_name AS TableView_Name, m.type AS TableView, cid+1 AS Column, p.*
FROM sqlite_master m, Pragma_Table_Info(m.tbl_name) p
WHERE m.type IN ('table', 'view') AND
   ( m.tbl_name = 'mypeople' OR m.tbl_name LIKE 'US_%')   -- filter tables
ORDER BY m.tbl_name;

PRAGMA table_info(table_name);

会给你一个列有所有列名的列表。

当你运行sqlite3命令行时，输入:

sqlite3 -header

也会给你想要的结果吗