Insert first 3 elements of 2D array into MySql Database












1














I have a list with data such as



infoarray[['1.', 'Name1', 'details1, '...', '...', '....'], ['2.', 'Name2, 'details2', '...', '...', '...'], ['3.', 'Name3', 'details3', '...', '...', '...']...]


I simply want to add the first 3 entries into a database table with the format



[PLACE],[NAME],[DETAILS]


Should be relatively simple. The data is already sorted, I would just simply have to append the first 3 elements of each inner array into my database. I tried the following code but I am getting an error.



//using pymysql

cur = conn.cursor()

cur.executemany("""
INSERT INTO
myTable
(place, name, details)
VALUES
(%s, %s, %s)
""", infoarray)
db.commit()

cur.close()
conn.close()


The error is "TypeError: not all arguments converted during string formatting"
which is assume means that my formatting is wrong. I am relatively new to python, so I am very familiar with the nuances of using pymysql.










share|improve this question






















  • Don't know if your array example is exactly as in your code, but in the example there are 5 elements per item, while on the insert there are only 3
    – Rodolfo Donã Hosp
    Nov 12 '18 at 18:56












  • Oops, wasn't too clear, there is additional data in the array, but I only want to add the first 3 items to my database. Everything else is not needed in the database.
    – memphis
    Nov 12 '18 at 19:04
















1














I have a list with data such as



infoarray[['1.', 'Name1', 'details1, '...', '...', '....'], ['2.', 'Name2, 'details2', '...', '...', '...'], ['3.', 'Name3', 'details3', '...', '...', '...']...]


I simply want to add the first 3 entries into a database table with the format



[PLACE],[NAME],[DETAILS]


Should be relatively simple. The data is already sorted, I would just simply have to append the first 3 elements of each inner array into my database. I tried the following code but I am getting an error.



//using pymysql

cur = conn.cursor()

cur.executemany("""
INSERT INTO
myTable
(place, name, details)
VALUES
(%s, %s, %s)
""", infoarray)
db.commit()

cur.close()
conn.close()


The error is "TypeError: not all arguments converted during string formatting"
which is assume means that my formatting is wrong. I am relatively new to python, so I am very familiar with the nuances of using pymysql.










share|improve this question






















  • Don't know if your array example is exactly as in your code, but in the example there are 5 elements per item, while on the insert there are only 3
    – Rodolfo Donã Hosp
    Nov 12 '18 at 18:56












  • Oops, wasn't too clear, there is additional data in the array, but I only want to add the first 3 items to my database. Everything else is not needed in the database.
    – memphis
    Nov 12 '18 at 19:04














1












1








1







I have a list with data such as



infoarray[['1.', 'Name1', 'details1, '...', '...', '....'], ['2.', 'Name2, 'details2', '...', '...', '...'], ['3.', 'Name3', 'details3', '...', '...', '...']...]


I simply want to add the first 3 entries into a database table with the format



[PLACE],[NAME],[DETAILS]


Should be relatively simple. The data is already sorted, I would just simply have to append the first 3 elements of each inner array into my database. I tried the following code but I am getting an error.



//using pymysql

cur = conn.cursor()

cur.executemany("""
INSERT INTO
myTable
(place, name, details)
VALUES
(%s, %s, %s)
""", infoarray)
db.commit()

cur.close()
conn.close()


The error is "TypeError: not all arguments converted during string formatting"
which is assume means that my formatting is wrong. I am relatively new to python, so I am very familiar with the nuances of using pymysql.










share|improve this question













I have a list with data such as



infoarray[['1.', 'Name1', 'details1, '...', '...', '....'], ['2.', 'Name2, 'details2', '...', '...', '...'], ['3.', 'Name3', 'details3', '...', '...', '...']...]


I simply want to add the first 3 entries into a database table with the format



[PLACE],[NAME],[DETAILS]


Should be relatively simple. The data is already sorted, I would just simply have to append the first 3 elements of each inner array into my database. I tried the following code but I am getting an error.



//using pymysql

cur = conn.cursor()

cur.executemany("""
INSERT INTO
myTable
(place, name, details)
VALUES
(%s, %s, %s)
""", infoarray)
db.commit()

cur.close()
conn.close()


The error is "TypeError: not all arguments converted during string formatting"
which is assume means that my formatting is wrong. I am relatively new to python, so I am very familiar with the nuances of using pymysql.







python mysql append pymysql






share|improve this question













share|improve this question











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share|improve this question










asked Nov 12 '18 at 18:49









memphismemphis

102




102












  • Don't know if your array example is exactly as in your code, but in the example there are 5 elements per item, while on the insert there are only 3
    – Rodolfo Donã Hosp
    Nov 12 '18 at 18:56












  • Oops, wasn't too clear, there is additional data in the array, but I only want to add the first 3 items to my database. Everything else is not needed in the database.
    – memphis
    Nov 12 '18 at 19:04


















  • Don't know if your array example is exactly as in your code, but in the example there are 5 elements per item, while on the insert there are only 3
    – Rodolfo Donã Hosp
    Nov 12 '18 at 18:56












  • Oops, wasn't too clear, there is additional data in the array, but I only want to add the first 3 items to my database. Everything else is not needed in the database.
    – memphis
    Nov 12 '18 at 19:04
















Don't know if your array example is exactly as in your code, but in the example there are 5 elements per item, while on the insert there are only 3
– Rodolfo Donã Hosp
Nov 12 '18 at 18:56






Don't know if your array example is exactly as in your code, but in the example there are 5 elements per item, while on the insert there are only 3
– Rodolfo Donã Hosp
Nov 12 '18 at 18:56














Oops, wasn't too clear, there is additional data in the array, but I only want to add the first 3 items to my database. Everything else is not needed in the database.
– memphis
Nov 12 '18 at 19:04




Oops, wasn't too clear, there is additional data in the array, but I only want to add the first 3 items to my database. Everything else is not needed in the database.
– memphis
Nov 12 '18 at 19:04












1 Answer
1






active

oldest

votes


















0














This happens because you are formatting 3 values in your query, but passing more than 3 elements per arra yitem.



Try changing your executemany call to:



cur.executemany("""
INSERT INTO
myTable
(place, name, details)
VALUES
(%s, %s, %s)
""", [a[:3] for a in infoarray])


This way you will get only the first 3 elements in each array item and pass it to executemany






share|improve this answer





















  • Issue solved! I assumed Python would automatically cut off the rest of the array since I am only using three elements. That was not the case. As a side note, I had a hard time debugging my execute command because without a proper conn.commit(), the execute statements did not stick to the database.
    – memphis
    Nov 12 '18 at 19:50











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1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









0














This happens because you are formatting 3 values in your query, but passing more than 3 elements per arra yitem.



Try changing your executemany call to:



cur.executemany("""
INSERT INTO
myTable
(place, name, details)
VALUES
(%s, %s, %s)
""", [a[:3] for a in infoarray])


This way you will get only the first 3 elements in each array item and pass it to executemany






share|improve this answer





















  • Issue solved! I assumed Python would automatically cut off the rest of the array since I am only using three elements. That was not the case. As a side note, I had a hard time debugging my execute command because without a proper conn.commit(), the execute statements did not stick to the database.
    – memphis
    Nov 12 '18 at 19:50
















0














This happens because you are formatting 3 values in your query, but passing more than 3 elements per arra yitem.



Try changing your executemany call to:



cur.executemany("""
INSERT INTO
myTable
(place, name, details)
VALUES
(%s, %s, %s)
""", [a[:3] for a in infoarray])


This way you will get only the first 3 elements in each array item and pass it to executemany






share|improve this answer





















  • Issue solved! I assumed Python would automatically cut off the rest of the array since I am only using three elements. That was not the case. As a side note, I had a hard time debugging my execute command because without a proper conn.commit(), the execute statements did not stick to the database.
    – memphis
    Nov 12 '18 at 19:50














0












0








0






This happens because you are formatting 3 values in your query, but passing more than 3 elements per arra yitem.



Try changing your executemany call to:



cur.executemany("""
INSERT INTO
myTable
(place, name, details)
VALUES
(%s, %s, %s)
""", [a[:3] for a in infoarray])


This way you will get only the first 3 elements in each array item and pass it to executemany






share|improve this answer












This happens because you are formatting 3 values in your query, but passing more than 3 elements per arra yitem.



Try changing your executemany call to:



cur.executemany("""
INSERT INTO
myTable
(place, name, details)
VALUES
(%s, %s, %s)
""", [a[:3] for a in infoarray])


This way you will get only the first 3 elements in each array item and pass it to executemany







share|improve this answer












share|improve this answer



share|improve this answer










answered Nov 12 '18 at 19:12









Rodolfo Donã HospRodolfo Donã Hosp

490211




490211












  • Issue solved! I assumed Python would automatically cut off the rest of the array since I am only using three elements. That was not the case. As a side note, I had a hard time debugging my execute command because without a proper conn.commit(), the execute statements did not stick to the database.
    – memphis
    Nov 12 '18 at 19:50


















  • Issue solved! I assumed Python would automatically cut off the rest of the array since I am only using three elements. That was not the case. As a side note, I had a hard time debugging my execute command because without a proper conn.commit(), the execute statements did not stick to the database.
    – memphis
    Nov 12 '18 at 19:50
















Issue solved! I assumed Python would automatically cut off the rest of the array since I am only using three elements. That was not the case. As a side note, I had a hard time debugging my execute command because without a proper conn.commit(), the execute statements did not stick to the database.
– memphis
Nov 12 '18 at 19:50




Issue solved! I assumed Python would automatically cut off the rest of the array since I am only using three elements. That was not the case. As a side note, I had a hard time debugging my execute command because without a proper conn.commit(), the execute statements did not stick to the database.
– memphis
Nov 12 '18 at 19:50


















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