In this SQL Server tip, Arthur Fuller explains the effects of NULLs, and the different results obtained by inner and outer JOINs. SQL Server developers must understand two things: the difference ...

Databases are often assumed to have definite content. The reality, though, is that the database at hand may be deficient due to missing, invalid, or uncertain information. As a simple illustration, ...

pre-commit is a nice development tool to automatize the binding of pre-commit hooks. After installation and configuration pre-commit will run your hooks before you commit any change. CREATE OR REPLACE ...

See how to join two data sets by one or more common columns using base R’s merge function, dplyr join functions, and the speedy data.table package. R has a number of quick, elegant ways to join data ...

pay_prepay.payment_id as prepayment_id, pay_prepay.payment_profile_id as prepayment_profile_id, pay_prepay.payment_document_id as prepayment_document_id, Left Join AP_Invoice_Payments_All payin -- ...

SQL is neither the fastest nor the most elegant way to talk to databases, but it is the best way we have. Here’s why Today, Structured Query Language is the standard means of manipulating and querying ...

Management Reporter (CU10+) integration for Dynamics AX 2012 pulls subsets of AX financial data first into staging tables in the data mart database. The Maintenance Task, which is run every minute by ...