Data Engineering Study #20ã10å¹´æ¦ãããã¼ã¿åæå ¥éãåã»ååã®çºè¡¨è³æã§ãã
Data Engineering Study #20ã10å¹´æ¦ãããã¼ã¿åæå ¥éãåã»ååã®çºè¡¨è³æã§ãã
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Introduction I often work with clients who have large âdata lakesâ or big star schema style enterprise databases with fact and dimension tables as far as the eye can see. Invariably said clients end up with a substantial SQL codebase composed of hundreds of independent queries with lots of overlap between them. I want to be able to treat SQL repositories like Iâd treat other codebases. That is, Iâ
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Multiple Queries in the Console Query Editor Rockset Consoleâs query editor allows users to type and run queries over collections. Until now, however, whatever was typed in the editor was run and parsed as a single query. This means that, for a user, it wasnât that easy to switch between multiple queries in our editor. They would have to comment out the queries they didnât want to run, or keep all
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!!Con 2019 - Writing an Interpreter in SQL for Fun and No Profit! by Michael Malis Writing SQL can be hard. SQL code is a bizarre combination of yelling and relational algebra. How can we make writing SQL easier? By embedding our own programming language in our SQL queries of course! In this talk, weâll take a look at how you use a combination of various Postgres features to build a programming
TL;DR This article aims to be the simplest introduction to constructing an LL(1) parser in Go, in this case for parsing SQL queries. It assumes minimal programming competence (functions, structs, ifs and for-loops). Hereâs the complete parser repository if you want to skip to results: github.com/marianogappa/sqlparser Simplification disclaimer To make things simple weâre gonna descope sub-selects,
HugSQL is a Clojure library for embracing SQL. SQL is the right tool for the job when working with a relational database!HugSQL uses simple conventions in your SQL files to define database functions in your Clojure namespace, creating a clean separation of Clojure and SQL code.HugSQL supports runtime replacement of:SQL Values where id = :idSQL Value Lists where id in (:v*:ids)SQL Identifiers from
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