Lmst
Login

#SQLtips

Python Job Supportpythonjobsupport
2026-01-08

Day – 89 | Data Analyst Interview: SQL Problem Solving & Common Questions  

Master the most asked Data Engineer interview ... source

quadexcel.com/wp/day-89-data-a

Python Job Supportpythonjobsupport
2025-12-28

Day – 53 | Data Analyst Interview: SQL Problem Solving & Common Questions  

Master the most asked Data Engineer interview questions with real-world SQL problem solving. This series is perfect for preparing ... source

quadexcel.com/wp/day-53-data-a

Python Job Supportpythonjobsupport
2025-12-17

Day – 67 | Data Analyst Interview: SQL Problem Solving & Common Questions  

Master the most asked Data Engineer interview questions with real-world SQL problem solving. This series is perfect for preparing ... source

quadexcel.com/wp/day-67-data-a

Ebokifyebokify
2025-11-21

Writing SQL queries is easy — but understanding their execution order is what separates good analysts from great ones.

SQL doesn’t run top to bottom; it follows a logical order — FROM → JOIN → WHERE → GROUP BY → HAVING → SELECT → ORDER BY → LIMIT.

Master this flow to debug, optimize, and write smarter queries.

📕 ebokify.com/data-analysis

Hacker Newsh4ckernews
2025-10-18

SQL Anti-Patterns You Should Avoid

datamethods.substack.com/p/sql

Python Job Supportpythonjobsupport
2025-10-08

What is SQL?  

source

quadexcel.com/wp/what-is-sql-d

Izoateizoateofficial
2025-08-07

How To Fix MySQL Error 1175: Disable Safe Update Mode MySQL

Running into MySQL Error 1175 while updating records? 🛠️ Learn how to safely disable Safe Update Mode and fix it in no time! 👉 Visit Now

izoate.com/blog/how-to-fix-mys

Tutorial Gatewaytutorialgateway
2025-06-08

Unlock the Power of SQL TRUNCATE
Looking to quickly remove all records from a table without affecting its structure?
SQL TRUNCATE is faster and more efficient than DELETE
✅Removes all data from a table in a snap

✅ Doesn’t log individual row deletions, improving performance

✅ Resets auto-increment counters

✅ Doesn't fire triggers

TRUNCATE TABLE student;

To dive deeper into SQL TRUNCATE👇
tutorialgateway.org/sql-trunca

zartom
2025-04-19

SQL Non-Unique Identity Column: Auto-Assignment in Microsoft SQL Server
Learn how to implement SQL Non-Unique Identity columns in SQL Server using sequences and triggers. This ensures data integrity & efficient database operations.
tech-champion.com/database/sql
...

zartom
2025-04-19

Reverse Substrings in SQL Server: Four Efficient Methods
Master Reverse SQL Substrings in SQL Server! Learn efficient methods to reverse substring order, transforming "apple-banana-cherry" into "cherry-banana-apple". Explore modern techniques using STRING_SPLIT & STRING_AGG for optimal performance.
tech-champion.com/database/sql
...

zartom
2025-04-19

DB2 LISTAGG Alternative: Aggregating Data in DB2 without LISTAGG
DB2 LISTAGG Alternative: Explore efficient string aggregation methods in DB2 using XMLAGG, recursive CTEs, and UDFs. Learn how to handle NULLs and custom delimiters for optimal results.
tech-champion.com/database/db2
...

zartom
2025-04-19

Efficient DB2 SQL Function: Single-Row Table Creation
Master DB2 SQL Function creation for efficient data manipulation! Learn to build functions returning single-row tables & explore various approaches for optimal performance.
tech-champion.com/database/db2
...

zartom
2025-04-19

Efficiently Update Multiple Tables in SQL: A Comprehensive Guide
Update Multiple Tables efficiently using stored procedures & dynamic SQL in DB2 LUW. This improves maintainability & prevents SQL injection. Learn how! DatabaseUpdate
tech-champion.com/database/db2
...

zartom
2025-04-19

Optimizing SQL Queries: Efficiently Finding the Previous Sale Date
Optimize SQL queries for Previous Sale Date using window functions like LAG(). Improve database performance & write efficient SQL queries.
tech-champion.com/database/sql
...

Python Job Supportpythonjobsupport
2025-04-02

SQL Trick | Mask Your Data !!! 

In this video, we see a cool trick to mask email data in SQL Server! Check out the complete list of SQL Query Interview Questions ... source

quadexcel.com/wp/sql-trick-mas

zartom
2025-03-29

SQL Non-Unique Identity Column: Auto-Assignment in Microsoft SQL Server
Learn how to implement SQL Non-Unique Identity columns in SQL Server using sequences and triggers. This ensures data integrity & efficient database operations.
tech-champion.com/database/sql
...

zartom
2025-03-29

Reverse Substrings in SQL Server: Four Efficient Methods
Master Reverse SQL Substrings in SQL Server! Learn efficient methods to reverse substring order, transforming "apple-banana-cherry" into "cherry-banana-apple". Explore modern techniques using STRING_SPLIT & STRING_AGG for optimal performance.
tech-champion.com/database/sql
...

zartom
2025-03-29

DB2 LISTAGG Alternative: Aggregating Data in DB2 without LISTAGG
DB2 LISTAGG Alternative: Explore efficient string aggregation methods in DB2 using XMLAGG, recursive CTEs, and UDFs. Learn how to handle NULLs and custom delimiters for optimal results.
tech-champion.com/database/db2
...

zartom
2025-03-29

Efficient DB2 SQL Function: Single-Row Table Creation
Master DB2 SQL Function creation for efficient data manipulation! Learn to build functions returning single-row tables & explore various approaches for optimal performance.
tech-champion.com/database/db2
...

zartom
2025-03-29

Efficiently Update Multiple Tables in SQL: A Comprehensive Guide
Update Multiple Tables efficiently using stored procedures & dynamic SQL in DB2 LUW. This improves maintainability & prevents SQL injection. Learn how! DatabaseUpdate
tech-champion.com/database/db2
...

Client Info

Server: https://mastodon.social
Version: 2025.07
Repository: https://github.com/cyevgeniy/lmst