Question

我想打印db2中数据库中表的所有列。这是我现在的代码。

#!/usr/bin/python

import ibm_db
from ibm_db import tables, fetch_assoc, exec_immediate
conn = ibm_db.connect("DATABASE=DB;HOSTNAME=9.6.24.89;PORT=50000;PROTOCOL=TCPIP;UID=R1990;PWD=secret;", "", "")


def results(command):
    ret = []
    result = fetch_assoc(command)
    while result:
        # This builds a list in memory. Theoretically, if there's a lot of rows,
        # we could run out of memory. In practice, I've never had that happen.
        # If it's ever a problem, you could use
        #     yield result
        # Then this function would become a generator. You lose the ability to access
        # results by index or slice them or whatever, but you retain
        # the ability to iterate on them.
        ret.append(result)
        result = fetch_assoc(command)
    return ret  # Ditch this line if you choose to use a generator.


t = results(tables(conn))
sql = "SELECT * FROM SYSIBM.SYSTABLES WHERE  type = 'T' AND name= 'Tables' " # Using our list of tables t from before...
stmt = ibm_db.exec_immediate(conn, sql)
tuple = ibm_db.fetch_both(stmt)
count = 0
while tuple != False:
    print tuple
    tuple = ibm_db.fetch_tuple(stmt)

结果大多是这样的。

\ XFF \ XFF \ XFF \ XFF \ XFF \ XFF \ XFF \ XFF \ XFF \ XFF \ XFF \ X0F \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X01 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X0F \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X10 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X80 \ XBF \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00 \ X00

有人可以帮我解决这个问题吗？相当新的。

Answer 1

我认为您有编码格式问题（可能的Unicode）

- ＆gt;如果你尝试这个查询，你有相同的结果吗？：

  SELECT cast(TABLE_NAME as varchar(255)  ccsid 1147) TABLE_NAME   FROM    SYSIBM.SYSTABLES WHERE  type = 'T' AND name= 'Tables'

- ＆gt;也许你可以试试这个：

  ibm_db.exec_immediate(conn, sql).decode('cp-1251')

打印DB2数据库中的列

1 个答案: