The Complete SQL and NoSQL Database | Roadmap for 2026
Databases have evolved far beyond simple CRUD. Now they're all about optimization, replication, sharding, and 100,500 NoSQL solutions. And now even recruiters are starting to throw these terms at you in interviews. It's time to rethink the MUST HAVEs for SQL and NoSQL.
00:00 SELECT isn't as simple as it seems
01:42 UPDATE, INSERT, DELETE
02:00 Indexes
02:29 Few people know about them
02:53 Locks
03:12 CASE WHEN, EXISTS
02:42 Transactions are a thing
03:51 These aren't obvious things either
03:58 Interviewers often catch you out here
04:37 SQL also has data types!
04:46 JSON to SQL
05:15 Query plan, explain, explain analyze
05:30 Even seniors might not know these details
06:43 Terms that will definitely FAILURE you in an interview
09:13 Query optimization
10:08 Scaling
12:38 And now the BIGGEST THING - they're even asking this at HR screenings
You can get the roadmap file here, and you can also support my work at the same time
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📙 MUST HAVEs for backend development/growth in 2026 are on my Pride channel - Guides, interview questions, roadmaps, and leaks of REAL interviews:
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(New recruitment for spring, closed for winter)