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A Step by Step Guide to the Availability Group (AG) Listener

Availability databases hosted on SQL Server Always On Availability Groups (AG) can be connected using a unique Virtual Network Name (VNN), called the Availability Group Listener. When an Availability Group is enabled, clients can connect to databases in both primary and secondary replicas without explicitly specifying the SQL Server instance name. You don’t even need […]

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2021-05-17

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SQLServerCentral Article

Step by Step Guide to Install Jupyter Notebook

Whether you work as a Data Engineer or a Data Scientist, a Jupyter Notebook is a helpful tool. One of the projects I was working required a comparison of two parquet files. This is mainly a schema comparison, not a data comparison. Though the two .parquet were created from two different sources, the outcome should […]

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2021-05-17

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SQLServerCentral Article

Understanding CRUD Operations on Tables with B-tree Indexes, Page-splits, and Fragmentation

Introduction Every DML transaction reads the data before it makes any changes. Not only during a SELECT query, but when you run any DML statement, insert, update, or delete, SQL Server first fetches a bunch of pages into the buffer pool locating the desired rows and changes them while synchronously writing to the transaction log […]

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2021-05-10

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Question of the Day

Identities and Sequences IV

When thinking about the identity property and sequence objects, which of these can be used with numeric and decimal data types?

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