Bases de données - CNRS
A simple and efficient strategy for evaluating queries in the presence of nulls is provided. The operators of relational algebra are then generalized ...
Les Objets dans SQL3 - Les pages perso du LIGTravail avec la valeur NULL. Des champs peuvent avoir la valeur NULL. Exemple : select anom, aprenom, commission from agent;. Résultat : JACQ. Comparing fMRI inter-subject correlations between groups using ...cfquery (against a database or against another Query of Queries) ... <td bgcolor = f0f0f0> ... This conditional tests whether an expression is null. Secure Firewall Management Center Database Access Guide v7.3The ?--? makes sure that the rest of the SQL statement is interpreted ... UNION SELECT user, pass, NULL FROM accounts -- '.
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