Fatemeh :
I want to query MySQL tables using python program but I got this error:
ProgrammingError: 1064 (42000): You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ''10' OFFSET '0'' at line 1
The confusing thing is that when I don't use variables, the query runs perfectly as it is shown below:
cur = connection.cursor()
query = "SELECT * FROM DB.Table LIMIT 10 OFFSET 0"
cur.execute(query)
records = cur.fetchall()
for record in records:
print(record)
But I need to select data batch by batch and I have to do the above command in a for loop. And I need to define variables. But I got error 1064. Here is the code with error:
i = 0
p = str(i)
j = 10
q = str(j)
cur = connection.cursor()
query = "SELECT * FROM DB.Table LIMIT %s OFFSET %s"
cur.execute(query,(q,p,))
records = cur.fetchall()
for record in records:
print(record)
I appreciate your help.
Parfait :
Simply, do not convert parameterized values to string as error shows single quotes:
i = 0
j = 10
cur = connection.cursor()
query = "SELECT * FROM DB.Table LIMIT %s OFFSET %s"
cur.execute(query, (j, i))
Guess you like
Origin http://43.154.161.224:23101/article/api/json?id=237790&siteId=1