CODEWITHSUNDEEP
pythonmysqlhex
Igor
Igor

Reputation: 6285

Inserting hexadecimal value as integer to MySQL

I have a MySQL table where a field have a type of INT. In my Python script I am reading the hexadecimal value (0xc558, for example) and trying to insert this value in the table as INT field type.

Doing so gives me:

(1265, "Data truncated for column at row 1)

An INT field type should be a standard integer with 4 bytes which should accept the value of 0xC558, which is 50520 in a decimal world.

I'm not doing any conversion, and the code I use is:

self.cur.execute("INSERT INTO my_table VALUES(NULL, %s)", (dataDict["hex_value"],)

where dataDict["hex_value"] is 0xC558.

Trying to use int(dataDict["hex_value"]) also gives an error: Invalid literal for int() with base 10: 0xC558.

Trying to use int(dataDict["hex_value"],base=16) also gives an error: int() can't convert non-string with explicit base.

EDIT: the value is of type 'str', as print type(dataDict["hex_value"]) shows (type 'str')

Upvotes: 1

Views: 579

Answers (2)

Barmar
Barmar

Reputation: 782785

Use:

int(dataDict["hex_value"][2:], base=16)

The substring [2:] extracts the part of the string after the 0x prefix. More completely:

self.cur.execute("INSERT INTO my_table VALUES(NULL, %s)", (int(dataDict["hex_value"][2:], base=16), ))

Upvotes: 0

holdenweb
holdenweb

Reputation: 37203

Note that you AREN'T trying to insert a string or an integer.

You say "dataDict["hex_value"] is 0xC558" but you don't say whether it's a string or (as the absence of quotation marks would imply) an integer. It can't be an integer because of the first error you replt. It's clearly not a string due to the second error.

So the issue lies with the type of whatever you have stored in dataDict, and you don't shoe the code for that. Yet ...

Upvotes: 1

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