Representing Query Logic Via Diagram

Yet SQL can be hard to read, even for expert users or the original creator of a query. We conjecture that it is possible to capture the logical intent of queries in automatically-generated visual diagrams that can help users understand the meaning of queries faster and more accurately than SQL text alone.

The following table represents the 9 queries as diagrams. Notice how logical similarities of queries across rows thus across different schemas become apparent despite using very different real world relations and attributes. In tuple relational calculus such queries are equivalent up to renaming of attributes and relation names.

Since SQL without group-ing and null values essentially represents a tractable FOL fragment between tables and their attributes, QueryVis fo-cuses on capturing the FOL representation of an SQL query and representing its underlying logic visually for eficient and intuitive interpretation.

Build queries on a diagram Last modified March 28, 2025 A database diagram is a graphical representation of the structure of the database and relations between database objects. In dbForge Query Builder for SQL Server, you can build queries, add or remove tables from a query, work with subqueries, specify sort order, add columns to output data, change query types, set aliases for tables and

Uncover SQL visualisation techniques with query diagrams, ER diagrams, lineage, and tools to make complex SQL easy to understand.

Understanding the meaning of existing SQL queries is critical for code maintenance and reuse. Yet SQL can be hard to read, even for expert users or the original creator of a query. We conjecture that it is possible to capture the logical intent of queries in 9292emphautomatically-generated visual diagrams that can help users understand the meaning of queries faster and more accurately than SQL

Our language-independent definition of query patterns opens novel paths for assisting database users. For example, these patterns could be leveraged to create visual query representations that faithfully represent query patterns, speed up interpretation, and provide visual feedback during query editing. As a concrete example, we propose Relational Diagrams, a complete and sound diagrammatic

Relational Diagrams are a complete and sound diagrammatic representation of safe relational calculus. They are proven unambiguous, proven relationally complete, and are able to represent all relational query patterns for unions of non-disjunctive queries. Our anonymously preregistered user study shows that Relational Diagrams allows users to recognize patterns

I have a SQL Select query with many joins between tables, I want to know which kind of diagram could represent it graphically in order to visualise the joins between tables and their types differe

They've proposed the idea of a collaborative query management system since 2009. Their principle was to enable an effective query-reuse. I found that what they presented quite match one of our value proposition, the quot query interpretation quot, which is the problem of reading and understanding existing SQL queries.