sql

Topic Replies Views Activity
Why the instruction chose to join two table together first and then join to the other one?
DQ Courses
sql ,  189 ,  189-4 ,  sql-joins-relations
1 35 January 24, 2021
Combining Joins with Subqueries
Q&A
sql ,  179 ,  179-7 ,  sql-joins-relations
3 54 January 21, 2021
Database Lock Error - SQL Mission 190
DQ Courses
sql
3 43 January 19, 2021
Solution for 190-8 "Challenge: Each Country's Best Customer" seems overly complicated?
Q&A
sql ,  190 ,  190-8
15 626 January 19, 2021
[376] dbWriteTable() error - Different number of columns than expected
DQ Courses
r ,  sql ,  376 ,  sql-intermediate-r ,  376-2
0 17 January 18, 2021
How to split a table column which contains a list and put it in a separate normalised table?
Q&A
sql ,  python ,  pandas
15 114 January 16, 2021
Review & Feedback: Answering Business Questions using SQL
Guided Project
data-visualization ,  sql ,  dataquest-platform ,  jupyter-notebook ,  191 ,  191-7 ,  sql-joins-relations
0 47 January 12, 2021
191-5 Answering Business Questions using SQL
DQ Courses
sql ,  191 ,  191-5
6 510 January 12, 2021
280-7 Albums vs Individual Tracks
DQ Courses
sql
12 562 January 10, 2021
Challenge: Each Country's Best Customer. Why the solution so complex when it can be easier?
DQ Courses
sql ,  190 ,  190-8 ,  sql-joins-relations
1 28 January 8, 2021
Why there is a result difference if I do the calculation outside WITH?
DQ Courses
sql
1 20 January 8, 2021
179-7 Combining Joins with Subqueries problem
DQ Courses
sql
2 80 January 7, 2021
Guided Project: Analyzing CIA Factbook Data Using SQL (SQL Skills Path)
Guided Project
sql ,  sql-fundamentals-skills ,  544-8 ,  544
2 48 January 7, 2021
Need help on Mission 280 - Guided Project: Answering Business Questions using SQL
DQ Courses
sql ,  280 ,  sql-joins-relations-de ,  280-5
1 36 January 6, 2021
CASE condition confusion in SQL
DQ Courses
sql ,  dataquest-platform ,  254 ,  254-2 ,  sql-fundamentals
1 28 January 5, 2021
SQL interval condition syntax // SQL Group Summary Statistics (254-2)
Q&A
sql
2 50 January 5, 2021
Guided Project - Answering Business Questions using SQL (by Rostislav)
Guided Project
sql ,  guided-project
0 23 January 2, 2021
Guided Project: Answering Business Questions using SQL - My First Project for Peer-Review
Guided Project
sql
0 21 January 5, 2021
Answering Business Questions Using SQL - Asking for community review/comments
Guided Project
191 ,  sql ,  python ,  191-7
3 116 December 30, 2020
SQLite3 FOREIGN KEY constraint failed
Q&A
sql ,  python
1 27 December 30, 2020
Start with SQL without pandas and command line
DQ Courses
sql
2 33 December 28, 2020
Guided Project_ Answering Business Questions using SQL
Guided Project
sql ,  191 ,  191-7 ,  sql-joins-relations ,  community-champion
5 198 December 28, 2020
Why is the Solution Ignoring 'Quantity' in invoice_line when Calculating Sold Tracks per Genre per Country?
DQ Courses
sql ,  191 ,  191-3 ,  sql-joins-relations
7 93 December 27, 2020
Guided Project: Answering Business Questions using SQL_Album vs Individual Tracks
Q&A
sql
1 39 December 24, 2020
Building and Organizing Complex Queries - from not FROM
Q&A
sql
1 33 December 21, 2020
Guided Project: Answering Business Questions using SQL - 5.Analyzing Sales by Country - Odd Group By Quirk
Q&A
sql ,  191 ,  191-5
6 309 December 21, 2020
Guided Project #4: Analyze CIA Factbook Data with SQL
Guided Project
sql ,  257 ,  257-8 ,  sql-fundamentals
1 76 December 21, 2020
Table aliasing - why does the course cut out the AS keyword after introducing the SQL style guide?
DQ Courses
sql ,  463 ,  sql-joins-relations-de ,  463-2
1 60 December 21, 2020
Question about the answer of SQL fundamental: 7. Practice Integrating A Subquery With The Outer Query
DQ Courses
sql ,  sql-fundamentals-skills ,  543-7 ,  543
3 58 December 19, 2020
How does this CASE part of the solution code work for the "answering business questions with SQL" guided project?
Q&A
sql ,  guided-project
1 27 December 18, 2020