将两个或多个参数传递给 Oracle SQL

Question

I'm trying to define a list of values (id numbers) for two parameters and pass them to SQL that's querying Oracle tables.

This code works as long as I only include one id and one parameter

idlist = ['SLCTD']
in_vars = ','.join(':%d' % i for i in range(len(idlist)))
query = """
select PEBEMPL_ECLS_CODE 
from PEBEMPL
inner join SPRIDEN on spriden_pidm = pebempl_pidm 
where SPRIDEN_CHANGE_IND is null
and SPRIDEN_ID in (%s)
""" % in_vars
df = pd.read_sql(query, connection, params=idlist)

Now have tried the following with two parameters and failed:

idlist = [735,'SLCTD']
in_vars = ','.join(':%d' % i for i in range(len(idlist)))
query = """
select PEBEMPL_ECLS_CODE 
from PEBEMPL
inner join SPRIDEN on spriden_pidm = pebempl_pidm 
where SPRIDEN_CHANGE_IND is null
and PLANNING_WEEK in (%s)
and SPRIDEN_ID in (%s)
""" % in_vars
df = pd.read_sql(query, connection, params=idlist)

Please advise

Answer 1

Oracle has the following:

If you execute the script from tty you need to do:

sqlplus $USER/$PASSWD @file.sql param_1 param_2

Into the file.sql you may have:

SELECT '$1', '$2' FROM DUAL;

Where $1 is the first parameter and $2 the second, if you want more, you can put as many parameters as you want.

If you are calling your script from python. You must to:

python3 file.py param_1 param_2 ... param_n

into file.py

import sys
sys.argv[1] --> param_1
sys.argv[2] --> param_2
sys.argv[n] --> param_n

Answer 2

For the string formatting issue, try something like this with Python 3:

idlist = ['SLCTD']
in_vars = ','.join(':bv%d' % i for i in range(len(idlist)))
query = """
select PEBEMPL_ECLS_CODE 
from PEBEMPL
inner join SPRIDEN on spriden_pidm = pebempl_pidm 
where SPRIDEN_CHANGE_IND is null
and PLANNING_WEEK in ({})
and SPRIDEN_ID in ({})
""".format(in_vars,in_vars)

print(query)

The output is:

select PEBEMPL_ECLS_CODE 
from PEBEMPL
inner join SPRIDEN on spriden_pidm = pebempl_pidm 
where SPRIDEN_CHANGE_IND is null
and PLANNING_WEEK in (:bv0)
and SPRIDEN_ID in (:bv0)

Since you are reusing bind variable "names" (the bv0), you will need to do 'bind by name' when you execute, which I will leave as an exercise for you to do.