The hierarchical implementation of operators is designed to account for potential variations between SQL databases.
Every specific implementation can provide it's own set of operators and string encoding for them based on the specific semantics.
A QueryBuilder singleton will exist for every database, and every QueryBuilder will select a specific set of operators.
The hierarchical implementation of operators is designed to account for potential variations between SQL databases. Every specific implementation can provide it's own set of operators and string encoding for them based on the specific semantics.
A QueryBuilder singleton will exist for every database, and every QueryBuilder will select a specific set of operators.