📸A Quick Review of SQL Window Functions with ExamplesData Manipulation Language (DML) commands enable you to add, modify, or remove rows in a database. In this article, we’ll explore these commands with practical examples. The INSERT command is used to add new rows to a table. The UPDATE command allows you to modify data in existing rows. The DELETE command removes rows from a table based on a condition.
📸Tableau Desktop Public: Try the Free Version for Data VisualizationTableau Desktop Public Edition is now free and packed with advanced features previously exclusive to Tableau Desktop Professional—excluding only enterprise database connectivity. Ideal for data enthusiasts, educators, and professionals, this powerful tool supports local file use, drag-and-drop visualizations, and cloud sharing for non-commercial purposes. Learn how to download, install, and get started with creating stunning data visualizations today.
🗃️Python: Setting data types when using to_sqlWhen dealing with databases, it's important to pay attention to data types to ensure that the table structure is preserved. The following is a basic code snippet to save a DataFrame to an Oracle database using SQLAlchemy and pandas.
🌅Saving Dataframes into Oracle Database with PythonYou can use the pandas library in combination with the sqlalchemy and cx_Oracle libraries to save a dataframe to an Oracle database in Python. The table structure should match the structure of the dataframe in terms of column names and data types.