I have a table I want to edit in MySQL using Python, and want to edit only certain rows and skip others.
What I need this for is more complex than in this example, for example a time dependent change in an object the table took data from, but this is the simplest thing I need.
cursor.execute("SELECT * FROM given_table")
result = cursor.fetchall()
for row in result:
whatto = "{Name}".format(Name=row['Action'])
if whatto == "Skip" :
#instruction to print row number
#instruction to skip rest of the loop
#other instructions
How do I tell Python to skip a row and give me the row number (or row number from the selection if I did it with an outset)?
If I write "print(row)", it will print me the row contents, and if I say "print(row[0])", it will print me the contents in column 1.
give me the row number
enumerate
can be used if you need both element and its' position in list or other iterable
How do I tell Python to skip a row
continue
placed inside loop body continues with the next cycle of the nearest enclosing loop.
Using mentioned in your case
for inx, row in enumerate(result):
whatto = "{Name}".format(Name=row['Action'])
if whatto == "Skip" :
print(inx)
continue
#other instructions
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