Formatting python string within a string
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I am using Python MySQL connector, need to write a SQL query as:
update inventory set checked_out = 'n' where item = 'dongle'
All the items are placed in a Cursor from a previous execution, i'm using in a loop as :
cnx = mysql.connector.connect(host='localhost',database='mem_bug',user='root',password='July@2013')
for r in cursor :
sql = "update inventory set checked_out = 'n' where item = {}".format(r[0])
cursor.execute(sql)
cnx.commit()
When SQL is formed it is formed as :
update inventory set checked_out = 'n' where item = dongle
Hence gives the error as :
_mysql_connector.MySQLInterfaceError: Unknown column 'dongle' in 'where clause'
How can I format string within the string to get my SQL rightly executed.
python string-formatting mysql-python
asked Nov 24 '18 at 6:50
SarangSarang
4391926
add a comment |
0
I am using Python MySQL connector, need to write a SQL query as:
update inventory set checked_out = 'n' where item = 'dongle'
All the items are placed in a Cursor from a previous execution, i'm using in a loop as :
cnx = mysql.connector.connect(host='localhost',database='mem_bug',user='root',password='July@2013')
for r in cursor :
sql = "update inventory set checked_out = 'n' where item = {}".format(r[0])
cursor.execute(sql)
cnx.commit()
When SQL is formed it is formed as :
update inventory set checked_out = 'n' where item = dongle
Hence gives the error as :
_mysql_connector.MySQLInterfaceError: Unknown column 'dongle' in 'where clause'
How can I format string within the string to get my SQL rightly executed.
python string-formatting mysql-python
asked Nov 24 '18 at 6:50
SarangSarang
4391926
where item = '{}'may be? But it's almost always a bad idea to use.format()with SQL statement.
– Austin
Nov 24 '18 at 6:59
don't use format. Use parameters as explained in the documentation: dev.mysql.com/doc/connector-python/en/…
– njzk2
Nov 24 '18 at 7:00
add a comment |
0
0
0
I am using Python MySQL connector, need to write a SQL query as:
update inventory set checked_out = 'n' where item = 'dongle'
All the items are placed in a Cursor from a previous execution, i'm using in a loop as :
cnx = mysql.connector.connect(host='localhost',database='mem_bug',user='root',password='July@2013')
for r in cursor :
sql = "update inventory set checked_out = 'n' where item = {}".format(r[0])
cursor.execute(sql)
cnx.commit()
When SQL is formed it is formed as :
update inventory set checked_out = 'n' where item = dongle
Hence gives the error as :
_mysql_connector.MySQLInterfaceError: Unknown column 'dongle' in 'where clause'
How can I format string within the string to get my SQL rightly executed.
python string-formatting mysql-python
asked Nov 24 '18 at 6:50
SarangSarang
4391926
I am using Python MySQL connector, need to write a SQL query as:
update inventory set checked_out = 'n' where item = 'dongle'
All the items are placed in a Cursor from a previous execution, i'm using in a loop as :
cnx = mysql.connector.connect(host='localhost',database='mem_bug',user='root',password='July@2013')
for r in cursor :
sql = "update inventory set checked_out = 'n' where item = {}".format(r[0])
cursor.execute(sql)
cnx.commit()
When SQL is formed it is formed as :
update inventory set checked_out = 'n' where item = dongle
Hence gives the error as :
_mysql_connector.MySQLInterfaceError: Unknown column 'dongle' in 'where clause'
How can I format string within the string to get my SQL rightly executed.
python string-formatting mysql-python
python string-formatting mysql-python
asked Nov 24 '18 at 6:50
SarangSarang
4391926
asked Nov 24 '18 at 6:50
SarangSarang
4391926
asked Nov 24 '18 at 6:50
SarangSarang
4391926
asked Nov 24 '18 at 6:50
SarangSarang
4391926
asked Nov 24 '18 at 6:50
SarangSarang
4391926
4391926
where item = '{}'may be? But it's almost always a bad idea to use.format()with SQL statement.
– Austin
Nov 24 '18 at 6:59
don't use format. Use parameters as explained in the documentation: dev.mysql.com/doc/connector-python/en/…
– njzk2
Nov 24 '18 at 7:00
add a comment |
where item = '{}'may be? But it's almost always a bad idea to use.format()with SQL statement.
– Austin
Nov 24 '18 at 6:59
don't use format. Use parameters as explained in the documentation: dev.mysql.com/doc/connector-python/en/…
– njzk2
Nov 24 '18 at 7:00
where item = '{}' may be? But it's almost always a bad idea to use .format() with SQL statement.– Austin
Nov 24 '18 at 6:59
where item = '{}' may be? But it's almost always a bad idea to use .format() with SQL statement.– Austin
Nov 24 '18 at 6:59
don't use format. Use parameters as explained in the documentation: dev.mysql.com/doc/connector-python/en/…
– njzk2
Nov 24 '18 at 7:00
don't use format. Use parameters as explained in the documentation: dev.mysql.com/doc/connector-python/en/…
– njzk2
Nov 24 '18 at 7:00
add a comment |
1 Answer
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Just add quotation mark and it seems the problem:
cnx = mysql.connector.connect(host='localhost',database='mem_bug',user='root',password='July@2013')
for r in cursor :
sql = "update inventory set checked_out = 'n' where item = '{}'".format(r[0])
cursor.execute(sql)
cnx.commit()
answered Nov 24 '18 at 6:55
RarblackRarblack
3,16641229
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
Just add quotation mark and it seems the problem:
cnx = mysql.connector.connect(host='localhost',database='mem_bug',user='root',password='July@2013')
for r in cursor :
sql = "update inventory set checked_out = 'n' where item = '{}'".format(r[0])
cursor.execute(sql)
cnx.commit()
answered Nov 24 '18 at 6:55
RarblackRarblack
3,16641229
add a comment |
0
Just add quotation mark and it seems the problem:
cnx = mysql.connector.connect(host='localhost',database='mem_bug',user='root',password='July@2013')
for r in cursor :
sql = "update inventory set checked_out = 'n' where item = '{}'".format(r[0])
cursor.execute(sql)
cnx.commit()
answered Nov 24 '18 at 6:55
RarblackRarblack
3,16641229
add a comment |
0
0
0
Just add quotation mark and it seems the problem:
cnx = mysql.connector.connect(host='localhost',database='mem_bug',user='root',password='July@2013')
for r in cursor :
sql = "update inventory set checked_out = 'n' where item = '{}'".format(r[0])
cursor.execute(sql)
cnx.commit()
answered Nov 24 '18 at 6:55
RarblackRarblack
3,16641229
Just add quotation mark and it seems the problem:
cnx = mysql.connector.connect(host='localhost',database='mem_bug',user='root',password='July@2013')
for r in cursor :
sql = "update inventory set checked_out = 'n' where item = '{}'".format(r[0])
cursor.execute(sql)
cnx.commit()
answered Nov 24 '18 at 6:55
RarblackRarblack
3,16641229
answered Nov 24 '18 at 6:55
RarblackRarblack
3,16641229
answered Nov 24 '18 at 6:55
RarblackRarblack
3,16641229
answered Nov 24 '18 at 6:55
RarblackRarblack
3,16641229
3,16641229
add a comment |
add a comment |
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where item = '{}'may be? But it's almost always a bad idea to use.format()with SQL statement.– Austin
Nov 24 '18 at 6:59
don't use format. Use parameters as explained in the documentation: dev.mysql.com/doc/connector-python/en/…
– njzk2
Nov 24 '18 at 7:00