近日，某個(gè)QQ 群里的一個(gè)朋友提出一個(gè)問題，如何將一個(gè)DB 的表結(jié)構(gòu)同步給另一個(gè)DB。針對(duì)這個(gè)問題，我進(jìn)行了思考與實(shí)踐，具體的實(shí)現(xiàn)代碼如下所示：

# coding:utf-8import pymysqldbDict = {'test1':'l-beta.test1'}dbUser = 'test'dbPassword = '123456'class DBUtils(): def __init__(self): self.conn = pymysql.connect(dbDict[’test1’], dbUser, dbPassword) self.cursor = self.conn.cursor() def dbSelect(self, sql): print('------------------------------------') print(sql) resultList = [] self.cursor.execute(sql) result = self.cursor.fetchall() columns = self.cursor.description for val in result: tempDict = {} for cloNum in range(len(columns)):tempDict[str(columns[cloNum][0])] = val[cloNum] resultList.append(tempDict) print('---------------------打印查詢結(jié)果----------------------') print(resultList) self.dbClose() return resultList def dbExcute(self, sql): print(sql) self.cursor.execute(sql) self.dbClose() def dbClose(self): self.conn.commit() self.cursor.close() self.conn.close()if __name__ == '__main__': test = DBUtils() result = test.dbSelect('select table_name from information_schema.tables where table_schema=’testdb1’') for dict1 in result: test = DBUtils() create_table_sql = 'create table testdb.%s as select * from testdb1.%s' % (dict1[’table_name’],dict1[’table_name’]) print(create_table_sql) test.dbExcute(create_table_sql)

示例代碼操作簡單，通俗易懂，所以沒有過多的注釋，如有疑問的小伙伴們，可在文章下方評(píng)論。

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