Database Design Mastering SQL Without Foreign Keys
After having worked at various employers Ive noticed a trend of bad database design with some of these companies primarily the exclusion of Foreign Keys
Oracle 23c AI Resolving ORA-02264 Constraint Errors A Definitive Guide
I am using Oracle database 23ai free version along with the PLSQL developper of Allround Automations I am getting the error ORA02264 and though I understand
PostgreSQL Large Dataset Updates INSERTUPDATE vs CREATE TABLEUPDATE - Speed Showdown
I have a large CSV file that I need to update into a PostgreSQL database I am considering two different approaches and would like to know which one is faster
Snowflake SQL Efficiently Looping Through JSON Arrays to Find Matching Objects
Breaking my head on this In Snowflake my field cityinfo looks like for 3 sample
SQLite no such table Error Xcode Database Troubleshooting Solutions
I had to search for many posts regarding these errors but still I cannot fix the problem Here is my code can anyone help me to see what is going
Uncover All SQL Indexes Implicit Explicit in SQLPlus A Comprehensive Guide
Is there some way to get a list of all the indexes on a particular table using
Efficiently Counting Rows in PostgreSQL Using CTEs and Subqueries
I have two tables lets call them t1 and t2 Im trying to filter t2 and count based on my results from a t1 selected query Lets call columns a b c d
Fastest Large Dataset Import Update SQL vs PostgreSQL Optimization
I have a large CSV file that I need to update into a PostgreSQL database I am considering two different approaches and would like to know which one is faster
SQL Lookup Tables IDs vs Pure Data Which Storage Method Wins
How do I decide between using foreign keys to lookup tables or using lookup table values directly in the tables requesting it avoiding the lookup table
Understanding Semi-Joins in SQL Databases A Comprehensive Guide
I am having trouble while trying to understand the concept of semijoin and how it is different from conventional join I have tried some article already but not
