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This is the twenty third part of the SQLxD series. For your convenience you can find other parts in the table of contents in Part 1 – XML Transformation Here go the tests for query parser: If you followed this series then this whole code should be very easy. Summary We now have engine for … Continue reading SQLxD Part 23 — Query parser tests
This is the twenty second part of the SQLxD series. For your convenience you can find other parts in the table of contents in Part 1 – XML Transformation For parsing queries we use IronPython. Let’s begin with C# code for executing PLY engine: And now goes the parser: This is simply an implementation of … Continue reading SQLxD Part 22 — Query parser
This is the twenty first part of the SQLxD series. For your convenience you can find other parts in the table of contents in Part 1 – XML Transformation We have all things to transform rows and columns. Now it is time to implement SELECT clause. We have two ways: either we use aggregates or … Continue reading SQLxD Part 21 — SELECT
This is the twentieth part of the SQLxD series. For your convenience you can find other parts in the table of contents in Part 1 – XML Transformation We can extract nodes, transform them into rows, filter, join, group, order, and transform them. It is high time to glue all the things together in order … Continue reading SQLxD Part 20 — Transformers
This is the nineteenth part of the SQLxD series. For your convenience you can find other parts in the table of contents in Part 1 – XML Transformation Last time we implemented expressions, it is high time to test them: Having expressions working we can use them in transformers. This is the topic of the … Continue reading SQLxD Part 19 — Expressions tests