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This repository contains solutions to a SQL Problem Set. The tasks cover SQL Data Manipulation Language (DML), Data Definition Language (DDL), and critical thinking involving SQL queries. Each task ...

Multi-tenancy is one of the most important features in Software as a Service(SaaS). In order to reduce cost, SaaS service vendors typically implement multi-tenant enabled database on top of ...

PL/SQL doesn’t interact with the database server directly. SQL is used in writing queries, creating and executing DDL and DML statements. PL/SQL is used in writing blocks, program, procedures, ...

At the application level, such a scheme-mapping is implemented by translating SQL statements. Previously, researchers have introduce methods to the translation of SQL query. In this work, we extend ...