SQL, Shell & Data Science

2+ hour, 7+ min ago   (1823+ words) cat prints a file to your screen and stops there. The name is short for concatenate, because joining files is the job it was written for and reading a long one was never part of the plan. The cat command…...

5+ hour, 45+ min ago   (1160+ words) Cardinality is a consequence of how many dimensions you index your readings by. Here is where the curve bends, measured, and what you can do about it without leaving Postgres. You did not hit an engine ceiling. You changed a…...

6+ hour, 29+ min ago   (242+ words) Redgate Software, the database DevOps and database management company, announced Redgate Assistant, its purpose-built AI assistant for database professionals. Available from today in Redgate Monitor and SQL Prompt, Redgate Assistant brings context-aware, governed AI directly into the workflows teams use…...

5+ hour, 55+ min ago   (790+ words) I have a job that publishes one article a day. Over four days I rebuilt its scheduling three times, and each rebuild fixed a real failure that the previous version could not have shown me. Every version passed the test…...

7+ hour, 55+ min ago   (1298+ words) 1.Data Modelling Data Modelling refers to the process of structuring and organising... Tagged with architecture, data, database....

9+ hour, 37+ min ago   (1338+ words) Introduction Data modelling is the process of organizing, structuring and defining... Tagged with productivity, tutorial, beginners, database....

10+ hour, 3+ min ago   (463+ words) Short answer: Generate each monthly statement from one immutable, versioned data snapshot; when its numbers differ from a dashboard snapshot or live query, compare the cutoff, filters, timezone, metric definition, and revision before touching the PDF template. That is the…...

10+ hour, 9+ min ago   (769+ words) Every schema ends up with a naming convention, whether anyone chose one or not. The question isn't whether you'll have a convention — it's whether it's the same convention everywhere, or three different ones fighting each other across users, tbl_orders, and OrderItem....

6+ hour, 8+ min ago   (33+ words) SQL appears in half of all data analyst job postings and it’s the language of every technical interview you’ll face. Here’s the first …...

6+ hour, 8+ min ago   (1013+ words) “How is Oracle accessing the data — through a full scan, an index, or another access mechanism — and is that access path appropriate for the actual data volume and predicates?” When an Oracle SQL query becomes slow, the first instinct is…...