在查詢中插入python變量

Question

我正在嘗試從mysql中撤回一個相當復雜的查詢-我的連接工作正常，並且在對值進行硬編碼時可以成功完成查詢。

我想將其中一個值設為python變量-我遵循在這里找到的方法： 如何在Python的SQL語句中使用變量？ 因為列出的用例似乎和我的差不多。

我正在使用的mysql execute函數與已解決的問題不同，並且我無法弄清楚將python變量放入execute調用的位置。

我的代碼：

targetPUID = "fmt/123"

cur.execute("""
(
SELECT `PUID`,`DROID_V`,`SIG_V`,`SPEED`,
COUNT(distinct IF(sourcelist.hasExtension=1,NAME,NULL)) as Ext,
COUNT(distinct IF(sourcelist.hasExtension=0,NAME,NULL)) as NoExt,
COUNT(distinct NAME) as `All`
FROM sourcelist, main_small
WHERE sourcelist.SourcePUID ="%s" AND main_small.NAME = sourcelist.SourceFileName
GROUP BY `PUID`,`DROID_V`,`SIG_V`,`SPEED` ORDER BY `DROID_V` ASC, `SIG_V`
 )
""") 

我知道我需要放置對我的變量targetPUID的引用才能與查詢中的%s鏈接。

___________________固定___________________

好，讓它正常工作：

 cur.execute("""
 (
 SELECT `PUID`,`DROID_V`,`SIG_V`,`SPEED`,
 COUNT(distinct IF(sourcelist.hasExtension=1,NAME,NULL)) as Ext,
 COUNT(distinct IF(sourcelist.hasExtension=0,NAME,NULL)) as NoExt,
 COUNT(distinct NAME) as `All`
 FROM sourcelist, main_small
 WHERE sourcelist.SourcePUID =%s AND main_small.NAME = sourcelist.SourceFileName
 GROUP BY `PUID`,`DROID_V`,`SIG_V`,`SPEED` ORDER BY `DROID_V` ASC, `SIG_V`
 )
""",targetPUID)

和

 targetPUID = "x-fmt/409"

我沒有足夠的代表來添加此修復程序。 謝謝閱讀。

Answer 1

嘗試：

cur.execute("""
(
SELECT `PUID`,`DROID_V`,`SIG_V`,`SPEED`,
COUNT(distinct IF(sourcelist.hasExtension=1,NAME,NULL)) as Ext,
COUNT(distinct IF(sourcelist.hasExtension=0,NAME,NULL)) as NoExt,
COUNT(distinct NAME) as `All`
FROM sourcelist, main_small
WHERE sourcelist.SourcePUID = %s AND main_small.NAME = sourcelist.SourceFileName
GROUP BY `PUID`,`DROID_V`,`SIG_V`,`SPEED` ORDER BY `DROID_V` ASC, `SIG_V`
 )
""",(int(targetPUID),)) 

Answer 2

cur.execute(..., (targetPUID,))

Answer 3

好，讓它正常工作：

 cur.execute("""
 (
 SELECT `PUID`,`DROID_V`,`SIG_V`,`SPEED`,
 COUNT(distinct IF(sourcelist.hasExtension=1,NAME,NULL)) as Ext,
 COUNT(distinct IF(sourcelist.hasExtension=0,NAME,NULL)) as NoExt,
 COUNT(distinct NAME) as `All`
 FROM sourcelist, main_small
 WHERE sourcelist.SourcePUID =%s AND main_small.NAME = sourcelist.SourceFileName
 GROUP BY `PUID`,`DROID_V`,`SIG_V`,`SPEED` ORDER BY `DROID_V` ASC, `SIG_V`
 )
""",targetPUID)

和

targetPUID = "x-fmt/409"