English 中文(简体)
含有变数的粉碎板
原标题:Python Mysql Request with variables
  • 时间:2011-06-13 23:31:33
  •  标签:
  • python
  • mysql

I have used python for a long time but I have trouble with a particular string-variable manipulation case

I want to do something like this:

##################################

#sample
MYROW=  ID_project 

result=curs.execute("""select %s FROM shotmanager_projects""",(MYROW))

#result=curs.execute("""select %s FROM shotmanager_projects""",( ID_sample )) 
# don t work too

###################################

And it doesnt work at all!

为什么不适用<代码>% var?

问题回答

(x) is not a tuple with one element, it is a normal value. (x,) is a tuple with one element.

result = curs.execute("select %s FROM shotmanager_projects", (MYROW,))





相关问题
SQL SubQuery getting particular column

I noticed that there were some threads with similar questions, and I did look through them but did not really get a convincing answer. Here s my question: The subquery below returns a Table with 3 ...

please can anyone check this while loop and if condition

<?php $con=mysql_connect("localhost","mts","mts"); if(!con) { die( unable to connect . mysql_error()); } mysql_select_db("mts",$con); /* date_default_timezone_set ("Asia/Calcutta"); $date = ...

php return a specific row from query

Is it possible in php to return a specific row of data from a mysql query? None of the fetch statements that I ve found return a 2 dimensional array to access specific rows. I want to be able to ...

Character Encodings in PHP and MySQL

Our website was developed with a meta tag set to... <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> This works fine for M-dashes and special quotes, etc. However, I ...

Pagination Strategies for Complex (slow) Datasets

What are some of the strategies being used for pagination of data sets that involve complex queries? count(*) takes ~1.5 sec so we don t want to hit the DB for every page view. Currently there are ~...

Averaging a total in mySQL

My table looks like person_id | car_id | miles ------------------------------ 1 | 1 | 100 1 | 2 | 200 2 | 3 | 1000 2 | 4 | 500 I need to ...

热门标签