https://sudonull.com/data-types-for-passport-and-identifiers-in-sql-storage-errors
Learn why passport and other identifiers should be stored as strings, not numbers in SQL. Avoid loss of leading zeros and data errors. Read the guide for developers.
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https://sudonull.com/sql-courses-2026-choosing-training-for-it-specialists-and-analysts
Review of the Best SQL Courses in 2026 Taking into Account AI Integration. Selection Criteria, Skills for Developers and Analysts, Job Market Prospects.
https://sudonull.com/sql-trainer-practice-queries-for-developers
Master SQL on real tasks in an interactive trainer. Modules on online store and library with JOIN, aggregations. For middle/senior dev and analysts. Start practice without theory right now.
https://sudonull.com/databases-sql-nosql-and-java-developer-tools
We analyze the choice between relational and non-relational DBMS, SQL features and Java tools. Learn how to optimize data access. Read the guide!
https://sudonull.com/vdi-for-sql-server-backup-without-bak-files-guide
How to implement MS SQL integration with backup systems via VDI. Detailed analysis of architecture, parallel processing, and chain recovery. Learn the advantages of the solution.
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