dbta

Adaptive Query Processing in SQL Server 2017

In earlier versions of SQL Server, after selecting a join algorithm, SQL Server had to process it even if a better alternative might be available. In SQL Server 2017, the query optimizer can now sense ...
GitHub

create-outer-joins-visual-database-tools.md

[!INCLUDESQL Server] By default, the Query and View Designer creates an inner join between tables. Inner joins eliminate the rows that do not match with a row from the other table. Outer joins, ...
GitHub

create-self-joins-automatically-visual-database-tools.md

[!INCLUDESQL Server] If a table has a reflexive relationship in the database, you can join it to itself automatically. Add to the Diagram pane the table you want to work with. Add the same table again ...
TechRepublic

SQL JOINs make it easy to find and fix missing data

SQL JOINs make it easy to find and fix missing data Your email has been sent Many people are confused by various JOIN operations supported by SQL. Learn to master the SQL command line with this crash ...
TechRepublic

Understand the effects of NULLs on inner and outer JOINs

Understand the effects of NULLs on inner and outer JOINs Your email has been sent SQL Server developers must understand two things: the difference between inner and outer JOINs and the effect of NULLs ...