Try to write the dataframe into DB, but getting the error below. Create Dataframe import pandas as pd d = {'col1': [1, 2], 'col2': ['VIP', 'Eco']} df = pd.DataFrame(data=d) Connect to SQL Server at Azure from sqlalchemy import create_engine engine = create_engine ('mssql+pyodbc://userass@dns:1433/database') Try to Insert the data into DB from sqlalchemy.sql import table, column, select, update, insert from sqlalchemy.types import Integer, Text, String, DateTime df.to_sql( 'Table_Test', engine, if_exists='append', index=False, chunksize=100, dtype = { "ID" : Integer, "Type" : String(10)} ) Error ValueError: ID (<class 'sqlalchemy.sql.sqltypes.Integer'>) not a string Pandas Version: '1.1.5' full error try:... Traceback (most recent call last): File "<ipython-input-19-993c20acc8ac>", line 2, in <module> df.to_sql( File "C:\anaconda3\lib\site-packages\pandas\core\generic.py", line 2605, in to_sql sql.to_sql( File "C:\anaconda3\lib\site-packages\pandas\io\sql.py", line 589, in to_sql pandas_sql.to_sql( File "C:\anaconda3\lib\site-packages\pandas\io\sql.py", line 1816, in to_sql raise ValueError(f"{col} ({my_type}) not a string") ValueError: ID (<class 'sqlalchemy.sql.sqltypes.Integer'>) not a string Continue reading...