Saiba como otimizar consultas SQL para valores NULL seguindo algumas práticas e técnicas recomendadas, como usar operadores IS NULL ou IS NOT NULL, evitando NOT IN com valores NULL e muito mais.

The first form of the CREATE TABLE statement creates tables that automatically map SQL data types to those supported by the SAS System. Use this form when you want to create a new table with columns ...

Generate SQL MERGE statements with Table data. Contribute to dnlnln/generate-sql-merge development by creating an account on GitHub.

Therefore, using NULL should be a conscious decision, not a default choice. Ultimately, your qualification to use NULL in SQL depends on your understanding of its nuances and your ability to implement ...

I'm trying to do some simple table parsing in SELECT statements using CCJSqlParserUtil.parse(sql); however, when I qualify a column name with "IS NOT NULL", I get the following exception: Encounter ...