UPDATE Data in SQL
Imagine this situation… You open a production database and find: You cannot delete everything. You must correct it. That is […]
Imagine this situation… You open a production database and find: You cannot delete everything. You must correct it. That is […]
You can create the most perfect database in the world… But without data, it is useless 😄 In this article,
Imagine you just joined a growing FMCG company as a Data Analyst. The company sells: They have: But there is
When you create a table in SQL, you must tell the database: 👉 “What type of data will be stored
Imagine this… You open an Excel file and see 50,000 rows of sales data. No structure.No connection.Same customer name written
If you want to become a Data Analyst, work in MIS, or manage business data — the first skill you