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Don't you have a chop with useful queries to use in your daily adventures and desventures with the database? I include in this first post a…

A simple way to export data from a query, table, etc.. of an oracle database to a flat file is to use the SPOOL command in SQLPlus. This…

A very powerful way to do a table's update in a SQL Server database is to link it with another table with a join, and updating the fields…

The operator to concatenate in SQL Server is '+', but this operator is also used to add values. Being the same operator for both, the…

In many cases, especially in ETL processes or data loading to a data warehouse, for example, we would rather use a single sentence or the…

In this shosrt post we will show how to obtain the N first rows from a Query on IBM DB2.

Have you ever wondered how to disable the autocommit option in Sql Server Management Studio? The answer is quick. Simply uncheck the option…

We could need to access to MySQL from SQL Server. An easy way to do it is creating a linked server that uses an ODBC connection..

Slowly changing dimensions or SCD (Slowly Changing Dimensions) are dimensions in which their data tend to change over time, either…

I tried to create a connection in SQL Developer with a remote SQL Server database.