lambda expression for fetching data from mssql in python
0
I have mssql table and i want to fetch few columns for some specific id's from that table using lambda function. Id is iterating over for loop.
Can you guide me to get the specific outcome so that I can fetch data of 1 id and append it to empty dataframe?
df=pd.DataFrame()
for i in range(len(temp)):
query="""select Code, Date,Status,Category,Class,Quantity FROM table_name where Code= '""" + str(temp.loc[i,'Code'])+"'"
new=pd.read_sql(query,conn)
df = df.append(temp)
return df
python for-loop lambda
edited Nov 13 '18 at 9:21
Triyugi Narayan Mani
1,02141527
asked Nov 13 '18 at 9:12
PrathamPratham
94
add a comment |
0
I have mssql table and i want to fetch few columns for some specific id's from that table using lambda function. Id is iterating over for loop.
Can you guide me to get the specific outcome so that I can fetch data of 1 id and append it to empty dataframe?
df=pd.DataFrame()
for i in range(len(temp)):
query="""select Code, Date,Status,Category,Class,Quantity FROM table_name where Code= '""" + str(temp.loc[i,'Code'])+"'"
new=pd.read_sql(query,conn)
df = df.append(temp)
return df
python for-loop lambda
edited Nov 13 '18 at 9:21
Triyugi Narayan Mani
1,02141527
asked Nov 13 '18 at 9:12
PrathamPratham
94
It is not clear what you are asking. The output of the query can be easily converted to dataframe. why loop? if you pass the list to the query you get your result, then convert to a dataframe.
– MEdwin
Nov 13 '18 at 9:59
i have around 100 ids..in sql query i have mentioned where clause there i have to iterate over for loop .
– Pratham
Nov 13 '18 at 10:09
just do a query where id = [those 100 ids]. The result can be converted to a dataframe easily.
– MEdwin
Nov 13 '18 at 10:11
The trick is to pass those 100 ids into the where clause. No need to loop. The where clause will be modified to be table_name where Code in (id1, id2, id3...)
– MEdwin
Nov 13 '18 at 10:11
Be aware that Date is a reserved word in MS SQL Server (and Code is in some other variants). I would rename some of those fields or surround them with square brackets.
– Andy G
Nov 13 '18 at 10:24
add a comment |
0
0
0
I have mssql table and i want to fetch few columns for some specific id's from that table using lambda function. Id is iterating over for loop.
Can you guide me to get the specific outcome so that I can fetch data of 1 id and append it to empty dataframe?
df=pd.DataFrame()
for i in range(len(temp)):
query="""select Code, Date,Status,Category,Class,Quantity FROM table_name where Code= '""" + str(temp.loc[i,'Code'])+"'"
new=pd.read_sql(query,conn)
df = df.append(temp)
return df
python for-loop lambda
edited Nov 13 '18 at 9:21
Triyugi Narayan Mani
1,02141527
asked Nov 13 '18 at 9:12
PrathamPratham
94
I have mssql table and i want to fetch few columns for some specific id's from that table using lambda function. Id is iterating over for loop.
Can you guide me to get the specific outcome so that I can fetch data of 1 id and append it to empty dataframe?
df=pd.DataFrame()
for i in range(len(temp)):
query="""select Code, Date,Status,Category,Class,Quantity FROM table_name where Code= '""" + str(temp.loc[i,'Code'])+"'"
new=pd.read_sql(query,conn)
df = df.append(temp)
return df
python for-loop lambda
python for-loop lambda
edited Nov 13 '18 at 9:21
Triyugi Narayan Mani
1,02141527
asked Nov 13 '18 at 9:12
PrathamPratham
94
edited Nov 13 '18 at 9:21
Triyugi Narayan Mani
1,02141527
asked Nov 13 '18 at 9:12
PrathamPratham
94
edited Nov 13 '18 at 9:21
Triyugi Narayan Mani
1,02141527
edited Nov 13 '18 at 9:21
Triyugi Narayan Mani
1,02141527
edited Nov 13 '18 at 9:21
Triyugi Narayan Mani
1,02141527
1,02141527
asked Nov 13 '18 at 9:12
PrathamPratham
94
asked Nov 13 '18 at 9:12
PrathamPratham
94
asked Nov 13 '18 at 9:12
PrathamPratham
94
94
It is not clear what you are asking. The output of the query can be easily converted to dataframe. why loop? if you pass the list to the query you get your result, then convert to a dataframe.
– MEdwin
Nov 13 '18 at 9:59
i have around 100 ids..in sql query i have mentioned where clause there i have to iterate over for loop .
– Pratham
Nov 13 '18 at 10:09
just do a query where id = [those 100 ids]. The result can be converted to a dataframe easily.
– MEdwin
Nov 13 '18 at 10:11
The trick is to pass those 100 ids into the where clause. No need to loop. The where clause will be modified to be table_name where Code in (id1, id2, id3...)
– MEdwin
Nov 13 '18 at 10:11
Be aware that Date is a reserved word in MS SQL Server (and Code is in some other variants). I would rename some of those fields or surround them with square brackets.
– Andy G
Nov 13 '18 at 10:24
add a comment |
It is not clear what you are asking. The output of the query can be easily converted to dataframe. why loop? if you pass the list to the query you get your result, then convert to a dataframe.
– MEdwin
Nov 13 '18 at 9:59
i have around 100 ids..in sql query i have mentioned where clause there i have to iterate over for loop .
– Pratham
Nov 13 '18 at 10:09
just do a query where id = [those 100 ids]. The result can be converted to a dataframe easily.
– MEdwin
Nov 13 '18 at 10:11
The trick is to pass those 100 ids into the where clause. No need to loop. The where clause will be modified to be table_name where Code in (id1, id2, id3...)
– MEdwin
Nov 13 '18 at 10:11
Be aware that Date is a reserved word in MS SQL Server (and Code is in some other variants). I would rename some of those fields or surround them with square brackets.
– Andy G
Nov 13 '18 at 10:24
It is not clear what you are asking. The output of the query can be easily converted to dataframe. why loop? if you pass the list to the query you get your result, then convert to a dataframe.
– MEdwin
Nov 13 '18 at 9:59
It is not clear what you are asking. The output of the query can be easily converted to dataframe. why loop? if you pass the list to the query you get your result, then convert to a dataframe.
– MEdwin
Nov 13 '18 at 9:59
i have around 100 ids..in sql query i have mentioned where clause there i have to iterate over for loop .
– Pratham
Nov 13 '18 at 10:09
i have around 100 ids..in sql query i have mentioned where clause there i have to iterate over for loop .
– Pratham
Nov 13 '18 at 10:09
just do a query where id = [those 100 ids]. The result can be converted to a dataframe easily.
– MEdwin
Nov 13 '18 at 10:11
just do a query where id = [those 100 ids]. The result can be converted to a dataframe easily.
– MEdwin
Nov 13 '18 at 10:11
The trick is to pass those 100 ids into the where clause. No need to loop. The where clause will be modified to be table_name where Code in (id1, id2, id3...)
– MEdwin
Nov 13 '18 at 10:11
The trick is to pass those 100 ids into the where clause. No need to loop. The where clause will be modified to be table_name where Code in (id1, id2, id3...)
– MEdwin
Nov 13 '18 at 10:11
Be aware that Date is a reserved word in MS SQL Server (and Code is in some other variants). I would rename some of those fields or surround them with square brackets.
– Andy G
Nov 13 '18 at 10:24
Be aware that Date is a reserved word in MS SQL Server (and Code is in some other variants). I would rename some of those fields or surround them with square brackets.
– Andy G
Nov 13 '18 at 10:24
add a comment |
1 Answer
1
active
oldest
votes
0
@pratham, see the logic you need. You can use the tuple function that allows you to pass the list to the query text. The result of the query can be used to build a dataframe. Let me know if it works.
inilist =[4, 34, 6, 9, 0, 5]
t = tuple(inilist)
query = "select Code, Date,Status,Category,Class,Quantity FROM table_name where Code IN {}".format(t)
query
Results:
'select Code, Date,Status,Category,Class,Quantity FROM table_name where Code IN (4, 34, 6, 9, 0, 5)'
answered Nov 13 '18 at 10:17
MEdwinMEdwin
974114
Thanks ...It's working fine
– Pratham
Nov 13 '18 at 10:39
add a comment |
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1 Answer
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1 Answer
1
active
oldest
votes
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oldest
votes
0
@pratham, see the logic you need. You can use the tuple function that allows you to pass the list to the query text. The result of the query can be used to build a dataframe. Let me know if it works.
inilist =[4, 34, 6, 9, 0, 5]
t = tuple(inilist)
query = "select Code, Date,Status,Category,Class,Quantity FROM table_name where Code IN {}".format(t)
query
Results:
'select Code, Date,Status,Category,Class,Quantity FROM table_name where Code IN (4, 34, 6, 9, 0, 5)'
answered Nov 13 '18 at 10:17
MEdwinMEdwin
974114
Thanks ...It's working fine
– Pratham
Nov 13 '18 at 10:39
add a comment |
0
@pratham, see the logic you need. You can use the tuple function that allows you to pass the list to the query text. The result of the query can be used to build a dataframe. Let me know if it works.
inilist =[4, 34, 6, 9, 0, 5]
t = tuple(inilist)
query = "select Code, Date,Status,Category,Class,Quantity FROM table_name where Code IN {}".format(t)
query
Results:
'select Code, Date,Status,Category,Class,Quantity FROM table_name where Code IN (4, 34, 6, 9, 0, 5)'
answered Nov 13 '18 at 10:17
MEdwinMEdwin
974114
Thanks ...It's working fine
– Pratham
Nov 13 '18 at 10:39
add a comment |
0
0
0
@pratham, see the logic you need. You can use the tuple function that allows you to pass the list to the query text. The result of the query can be used to build a dataframe. Let me know if it works.
inilist =[4, 34, 6, 9, 0, 5]
t = tuple(inilist)
query = "select Code, Date,Status,Category,Class,Quantity FROM table_name where Code IN {}".format(t)
query
Results:
'select Code, Date,Status,Category,Class,Quantity FROM table_name where Code IN (4, 34, 6, 9, 0, 5)'
answered Nov 13 '18 at 10:17
MEdwinMEdwin
974114
@pratham, see the logic you need. You can use the tuple function that allows you to pass the list to the query text. The result of the query can be used to build a dataframe. Let me know if it works.
inilist =[4, 34, 6, 9, 0, 5]
t = tuple(inilist)
query = "select Code, Date,Status,Category,Class,Quantity FROM table_name where Code IN {}".format(t)
query
Results:
'select Code, Date,Status,Category,Class,Quantity FROM table_name where Code IN (4, 34, 6, 9, 0, 5)'
answered Nov 13 '18 at 10:17
MEdwinMEdwin
974114
answered Nov 13 '18 at 10:17
MEdwinMEdwin
974114
answered Nov 13 '18 at 10:17
MEdwinMEdwin
974114
answered Nov 13 '18 at 10:17
MEdwinMEdwin
974114
974114
Thanks ...It's working fine
– Pratham
Nov 13 '18 at 10:39
add a comment |
Thanks ...It's working fine
– Pratham
Nov 13 '18 at 10:39
Thanks ...It's working fine
– Pratham
Nov 13 '18 at 10:39
Thanks ...It's working fine
– Pratham
Nov 13 '18 at 10:39
add a comment |
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It is not clear what you are asking. The output of the query can be easily converted to dataframe. why loop? if you pass the list to the query you get your result, then convert to a dataframe.
– MEdwin
Nov 13 '18 at 9:59
i have around 100 ids..in sql query i have mentioned where clause there i have to iterate over for loop .
– Pratham
Nov 13 '18 at 10:09
just do a query where id = [those 100 ids]. The result can be converted to a dataframe easily.
– MEdwin
Nov 13 '18 at 10:11
The trick is to pass those 100 ids into the where clause. No need to loop. The where clause will be modified to be table_name where Code in (id1, id2, id3...)
– MEdwin
Nov 13 '18 at 10:11
Be aware that Date is a reserved word in MS SQL Server (and Code is in some other variants). I would rename some of those fields or surround them with square brackets.
– Andy G
Nov 13 '18 at 10:24