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Add dictionary or list to Sqlite3 - Gives error operation parameter must be str

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0

Ok I am new to sqlite and python in general so please be nice =)
I have a simple dictionary -

time = data[0]['timestamp']
price = data[0]['price']

myprice = 'Date':time,'price':price

myprice looks like this (time is a timestamp) -

'Date': 1553549093, 'price': 1.7686

I now want to add the data to sqlite3 database...so I created this -

#Create database if not exist...

db_filename = 'mydb_test.db'
connection = sqlite3.connect(db_filename)

#Get a SQL cursor to be able to execute SQL commands...

cursor = connection.cursor()

#Create table

sql = '''CREATE TABLE IF NOT EXISTS TEST
 (PID INTEGER PRIMARY KEY AUTOINCREMENT,
 DATE TIMESTAMP,
 PRICE FLOAT)'''

#Now lets execute the above SQL

cursor.execute(sql)


#Insert data in sql

sql2 = ("INSERT INTO GBPCAD VALUES (?,?)", [(myprice['Date'],myprice['price'])])

cursor.execute(sql2)
cursor.commit()
connection.close()

But when executing this code I get ValueError: operation parameter must be str

What am I doing wrong?

sqlite python-3.6

share|improve this question

asked Mar 25 at 21:40

Slavia888Slavia888

5277 bronze badges

add a comment | 

0

Ok I am new to sqlite and python in general so please be nice =)
I have a simple dictionary -

time = data[0]['timestamp']
price = data[0]['price']

myprice = 'Date':time,'price':price

myprice looks like this (time is a timestamp) -

'Date': 1553549093, 'price': 1.7686

I now want to add the data to sqlite3 database...so I created this -

#Create database if not exist...

db_filename = 'mydb_test.db'
connection = sqlite3.connect(db_filename)

#Get a SQL cursor to be able to execute SQL commands...

cursor = connection.cursor()

#Create table

sql = '''CREATE TABLE IF NOT EXISTS TEST
 (PID INTEGER PRIMARY KEY AUTOINCREMENT,
 DATE TIMESTAMP,
 PRICE FLOAT)'''

#Now lets execute the above SQL

cursor.execute(sql)


#Insert data in sql

sql2 = ("INSERT INTO GBPCAD VALUES (?,?)", [(myprice['Date'],myprice['price'])])

cursor.execute(sql2)
cursor.commit()
connection.close()

But when executing this code I get ValueError: operation parameter must be str

What am I doing wrong?

sqlite python-3.6

share|improve this question

asked Mar 25 at 21:40

Slavia888Slavia888

5277 bronze badges

add a comment | 

Ok I am new to sqlite and python in general so please be nice =)
I have a simple dictionary -

time = data[0]['timestamp']
price = data[0]['price']

myprice = 'Date':time,'price':price

myprice looks like this (time is a timestamp) -

'Date': 1553549093, 'price': 1.7686

I now want to add the data to sqlite3 database...so I created this -

#Create database if not exist...

db_filename = 'mydb_test.db'
connection = sqlite3.connect(db_filename)

#Get a SQL cursor to be able to execute SQL commands...

cursor = connection.cursor()

#Create table

sql = '''CREATE TABLE IF NOT EXISTS TEST
 (PID INTEGER PRIMARY KEY AUTOINCREMENT,
 DATE TIMESTAMP,
 PRICE FLOAT)'''

#Now lets execute the above SQL

cursor.execute(sql)


#Insert data in sql

sql2 = ("INSERT INTO GBPCAD VALUES (?,?)", [(myprice['Date'],myprice['price'])])

cursor.execute(sql2)
cursor.commit()
connection.close()

But when executing this code I get ValueError: operation parameter must be str

What am I doing wrong?

sqlite python-3.6

share|improve this question

asked Mar 25 at 21:40

Slavia888Slavia888

5277 bronze badges

time = data[0]['timestamp']
price = data[0]['price']

myprice = 'Date':time,'price':price

'Date': 1553549093, 'price': 1.7686

#Create database if not exist...

db_filename = 'mydb_test.db'
connection = sqlite3.connect(db_filename)

#Get a SQL cursor to be able to execute SQL commands...

cursor = connection.cursor()

#Create table

sql = '''CREATE TABLE IF NOT EXISTS TEST
 (PID INTEGER PRIMARY KEY AUTOINCREMENT,
 DATE TIMESTAMP,
 PRICE FLOAT)'''

#Now lets execute the above SQL

cursor.execute(sql)


#Insert data in sql

sql2 = ("INSERT INTO GBPCAD VALUES (?,?)", [(myprice['Date'],myprice['price'])])

cursor.execute(sql2)
cursor.commit()
connection.close()

share|improve this question

asked Mar 25 at 21:40

Slavia888Slavia888

5277 bronze badges

share|improve this question

asked Mar 25 at 21:40

Slavia888Slavia888

5277 bronze badges

asked Mar 25 at 21:40

Slavia888Slavia888

5277 bronze badges

asked Mar 25 at 21:40

Slavia888Slavia888

5277 bronze badges

1 Answer
1

active

oldest

votes

1

Pass the arguments of the insert statement in execute():

sql2 = "INSERT INTO GBPCAD (DATE, PRICE) VALUES (?,?)"
cursor.execute(sql2, (myprice['Date'], myprice['price']))

Also include in the insert statement the names of the columns.

share|improve this answer

answered Mar 25 at 22:10

forpasforpas

32.1k55 gold badges1111 silver badges3030 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for taking time to answer. Error message gone but no data is added to db. Have to check somehow where problem is.
  
  – Slavia888
  Mar 26 at 22:28
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  The create statement in your code creates a table named TEST but the insert statement adds a row to a table GBPCAD. Why?
  
  – forpas
  Mar 26 at 22:38
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Forpas you are fast =) I solved it. It was my bad using gbpcad as table-name in example. What was the problem was - connection.commit() and not cursor.commit() Everything works like a champion! And so are you! Many thanks!
  
  – Slavia888
  Mar 26 at 22:47
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Fine if it is solved.
  
  – forpas
  Mar 26 at 22:49
  

  
  
  
  

add a comment | 

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1

Pass the arguments of the insert statement in execute():

sql2 = "INSERT INTO GBPCAD (DATE, PRICE) VALUES (?,?)"
cursor.execute(sql2, (myprice['Date'], myprice['price']))

Also include in the insert statement the names of the columns.

share|improve this answer

answered Mar 25 at 22:10

forpasforpas

32.1k55 gold badges1111 silver badges3030 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for taking time to answer. Error message gone but no data is added to db. Have to check somehow where problem is.
  
  – Slavia888
  Mar 26 at 22:28
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  The create statement in your code creates a table named TEST but the insert statement adds a row to a table GBPCAD. Why?
  
  – forpas
  Mar 26 at 22:38
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Forpas you are fast =) I solved it. It was my bad using gbpcad as table-name in example. What was the problem was - connection.commit() and not cursor.commit() Everything works like a champion! And so are you! Many thanks!
  
  – Slavia888
  Mar 26 at 22:47
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Fine if it is solved.
  
  – forpas
  Mar 26 at 22:49
  

  
  
  
  

add a comment | 

1

Pass the arguments of the insert statement in execute():

sql2 = "INSERT INTO GBPCAD (DATE, PRICE) VALUES (?,?)"
cursor.execute(sql2, (myprice['Date'], myprice['price']))

Also include in the insert statement the names of the columns.

share|improve this answer

answered Mar 25 at 22:10

forpasforpas

32.1k55 gold badges1111 silver badges3030 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for taking time to answer. Error message gone but no data is added to db. Have to check somehow where problem is.
  
  – Slavia888
  Mar 26 at 22:28
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  The create statement in your code creates a table named TEST but the insert statement adds a row to a table GBPCAD. Why?
  
  – forpas
  Mar 26 at 22:38
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Forpas you are fast =) I solved it. It was my bad using gbpcad as table-name in example. What was the problem was - connection.commit() and not cursor.commit() Everything works like a champion! And so are you! Many thanks!
  
  – Slavia888
  Mar 26 at 22:47
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Fine if it is solved.
  
  – forpas
  Mar 26 at 22:49
  

  
  
  
  

add a comment | 

Pass the arguments of the insert statement in execute():

sql2 = "INSERT INTO GBPCAD (DATE, PRICE) VALUES (?,?)"
cursor.execute(sql2, (myprice['Date'], myprice['price']))

Also include in the insert statement the names of the columns.

share|improve this answer

answered Mar 25 at 22:10

forpasforpas

32.1k55 gold badges1111 silver badges3030 bronze badges

sql2 = "INSERT INTO GBPCAD (DATE, PRICE) VALUES (?,?)"
cursor.execute(sql2, (myprice['Date'], myprice['price']))

share|improve this answer

answered Mar 25 at 22:10

forpasforpas

32.1k55 gold badges1111 silver badges3030 bronze badges

answered Mar 25 at 22:10

forpasforpas

32.1k55 gold badges1111 silver badges3030 bronze badges

answered Mar 25 at 22:10

forpasforpas

32.1k55 gold badges1111 silver badges3030 bronze badges