After practicing, you can also takeHackerRank’s Skills Certification Testto test your SQL skills. These tests are timed assessments that require you to solve SQL questions within a time limit. Currently, the following SQL assessments are available: SQL Basictests you on simple queries, relationship...
HackerRank.com - SQL interactive exercises and many others languages SQL-EX.ru - Practical skills of SQL language (Russian, English) Free Azure certification training courses SQL Server Tutorial (by Tutorial Gateway) Intro to SQL: Querying and managing data T-SQL Tutorial (by TutorialSpoint) T-SQ...
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