C#でのデータベース開発において、Entity Framework Core（EF Core）は非常に強力なORMツールですが、LINQで記述したクエリが実際にどのようなSQL文としてデータベースに発行されているか、ブラックボックスになりがちです。 「意図したデータが取得できない ...

I've said it before and I'll say it again: If you want to speed up your application, don't look at your code, look at your data access. The two slowest things you can do in application development are ...

The DICTIONARY tables component is specified in the FROM clause of a SELECT statement. DICTIONARY is a reserved libref for use only in PROC SQL. Data from DICTIONARY tables are generated at run time.

The transaction log file contains the SQL Server transactions of the database. It basically records the database transactions and the changes made by the transactions to the database. The logs are ...