Hii guys
I'm new to python and I'm trying to import mssql data to mysql using python..
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#!/usr/bin/python
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import MySQLdb
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import pyodbc
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import csv
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csvreader = csv.reader(open('datatypes.txt', 'rb'))
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dataTypes = dict(csvreader)
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#connection for MSSQL. (Note: you must have FreeTDS installed and configured!)
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conn = pyodbc.connect('DRIVER={FreeTDS}; SERVER=abc; DATABASE=gfgh; UID=op; PWD=hmmm')
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msCursor = conn.cursor()
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#connection for MySQL
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db = MySQLdb.connect(passwd="xyz", db="pqr")
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myCursor = db.cursor()
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msCursor.execute("SELECT * FROM airlinemaster WHERE type='U'") #sysobjects is a table in MSSQL db's containing meta data about the database. (Note: this may vary depending on your MSSQL version!)
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dbTables = msCursor.fetchall()
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noLength = [56, 58, 61] #list of MSSQL data types that don't require a defined length ie. datetime
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for tbl in dbTables:
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msCursor.execute("SELECT * FROM airlinemaster WHERE airline = air india('%s')" % tbl[0]) #syscolumns: see sysobjects above.
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columns = msCursor.fetchall()
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attr = ""
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for col in columns:
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colType = dataTypes[str(col.xtype)] #retrieve the column type based on the data type id
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#make adjustments to account for data types present in MSSQL but not supported in MySQL (NEEDS WORK!)
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if col.xtype == 60:
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colType = "float"
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attr += col.name +" "+ colType + "(" + str(col.length) + "),"
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elif col.xtype in noLength:
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attr += col.name +" "+ colType + ","
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else:
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attr += col.name +" "+ colType + "(" + str(col.length) + "),"
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attr = attr[:-1]
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myCursor.execute("CREATE TABLE " + tbl[0] + " (" + attr + ");") #create the new table and all columns
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msCursor.execute("select * from %s" % tbl[0])
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tblData = msCursor.fetchall()
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#populate the new MySQL table with the data from MSSQL
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for row in tblData:
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fieldList = ""
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for field in row:
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if field == None:
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fieldList += "NULL,"
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else:
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field = MySQLdb.escape_string(str(field))
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fieldList += "'"+ field + "',"
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fieldList = fieldList[:-1]
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myCursor.execute("INSERT INTO " + tbl[0] + " VALUES (" + fieldList + ")" )
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Is this the correct code to import sql data??? Also I'm clueless about datatypes.txt file.. what should be there in a txt file?
if not plz correct me with an example
thnx in advance..
