想用python遍历某个数据库中的一个表，依次读出每条记录，并修改保存。
请问该如何编写代码？谢谢
declare @row varchar(30)
declare @tbname varchar(30)
DECLARE string_find_cursor CURSOR FAST_FORWARD FOR
SELECT [name]
FROM sysobjects where type='U' and name like 'A%'
ORDER BY [name]
OPEN string_find_cursor
FETCH NEXT FROM string_find_cursor
INTO @tbname
WHILE @@FETCH_STATUS = 0
BEGIN
--select @row=count(*) from @tbname
select @row=rows from sysindexes where id = object_id(cast(@tbname as varchar(30))) and indid in (0,1)
if(cast(@row as int))>0
print @tbname+' '+@row+' '+'select * from '+@tbname
FETCH NEXT FROM string_find_cursor
INTO @tbname
END
CLOSE string_find_cursor
DEALLOCATE string_find_cursor
参考 ： https://blog.csdn.net/my98800/article/details/76602277
你可以看看
应该要表明Python版本MSSql版本，不过可以先参考代码：
from os import getenv
import pymssql
server = getenv("PYMSSQL_TEST_SERVER")
user = getenv("PYMSSQL_TEST_USERNAME")
password = getenv("PYMSSQL_TEST_PASSWORD")
conn = pymssql.connect(server, user, password, "tempdb")
cursor = conn.cursor()
cursor.execute("""
IF OBJECT_ID('persons', 'U') IS NOT NULL
DROP TABLE persons
CREATE TABLE persons (
id INT NOT NULL,
name VARCHAR(100),
salesrep VARCHAR(100),
PRIMARY KEY(id)
)
""")
cursor.executemany(
"INSERT INTO persons VALUES (%d, %s, %s)",
[(1, 'John Smith', 'John Doe'),
(2, 'Jane Doe', 'Joe Dog'),
(3, 'Mike T.', 'Sarah H.')])
# you must call commit() to persist your data if you don't set autocommit to True
conn.commit()
cursor.execute('SELECT * FROM persons WHERE salesrep=%s', 'John Doe')
for row in cursor:
print("ID=%d, Name=%s" % (row['id'], row['name']))
conn.close()