Getting SQL Developer (SQLD) Certification Part 3

Name: Getting SQL Developer (SQLD) Certification Part 3
Price: 19250 KRW
Rating: 4.2 (21 reviews)

It contains only the essentials required to obtain the SQLD certification. This is a learning process that will help you acquire the SQLD certification by solving various examples directly, starting from setting up the development environment.

(4.2) 21 reviews

22,662 learners

Level Basic

Course period 12 months

usefulit

SQL

Reviews from Early Learners

4.2

5.0

everick9

35% enrolled

Thank you~!

5.0

할수있다

100% enrolled

I heard it well

5.0

abc2752

100% enrolled

Thank you for the detailed and easy to understand explanation.

What you will gain after the course

What you need to know to get SQLD certification
Understanding Data Modeling
Understanding data models and performance

Learn the essentials and earn your SQLD certification! 🏅

📣 Please check before taking the class!

This course does not offer Q&A sessions with knowledge sharers . Please keep this in mind when attending.
This lecture is a continuation of Part 2 of Obtaining SQL Developer (SQLD) Certification .
The audio for this lecture was recorded somewhat softly. Please check the [Preview] video before attending the lecture.

Anyone interested in getting SQLD certification? 🙋

The SQLD certification is a nationally recognized qualification designed to cultivate individuals with a deep understanding of SQL execution principles and the specialized knowledge to effectively use it. This course covers development environment setup, core content essential for passing the exam, and problem-solving.

SQL developers must possess a foundational understanding of data modeling, as well as specialized knowledge in database object design and implementation, including SQL writing and performance optimization. Obtaining the SQLD certification can significantly enhance your query writing skills for design-based modeling tasks, providing valuable practical benefits.

Learning Objectives ✨

You can earn SQLD certification by understanding the core content and working through various examples.

_{From the lecture 'Explanation of GROUP functions (ROLLUP, GROUPING, GROUPING SETS, CUBE)'}

_{From the lecture 'Windows Function Concepts and Structure'}

_{From the lecture 'Solving Verification Problems'}

SQLD Certification Series 📚

Recommended for
these people

Who is this course right for?

Anyone who wants to obtain SQLD certification
Anyone who wants to become a SQL developer

Need to know before starting?

Hello
This is usefulit

8,280,697

Learners

6,638

Reviews

4.6

Rating

336

Courses

I will help you grow through useful IT lectures.

Curriculum

All

17 lectures ∙ (9hr 10min)

Course Materials:

Lecture resources

Section 1. SQL_Usage (GROUP function, etc.)

9 lectures ∙ (4hr 52min)

1. Description of GROUP functions (ROLLUP, GROUPING, GROUPING SETS, CUBE)
30:56
2. Practice on GROUP functions (ROLLUP, GROUPING, GROUPING SETS, CUBE)
29:30
3. Explanation of window function concepts and structures, WINDOWING structure, ranking functions (RANK, DENSERANK, ROW_NUMBER functions), and aggregate functions
27:39
4. Practice on window function concepts and structures, WINDOWING structure, ranking functions (RANK, DENSERANK, ROW_NUMBER functions), and aggregate functions
35:16
5. Description of row order related functions and ratio related functions
31:59
6. Practice on FIRST_VALUE, LAST_VALUE, LAG, LEAD, CUME_DIST, PERCENT_RANK, NTILE functions
32:35
7. Partition functions, RANGE partition, LIST partition, HASH partition, verification problem solution
36:38
8. Solution to past exam questions-1
29:23
9. Solving past exam questions-2
38:27

Section 2. Principles of SQL Optimization

8 lectures ∙ (4hr 18min)

10. Description of the concept, features, necessity, and execution plan verification of the optimizer
30:27
11. Explain how optimizers work, what the engine is, and the differences between rule-based and cost-based optimizers.
24:31
12. Description of the function, structure, creation, and usage examples of indexes
35:52
13. Explanation of index scan (unique scan, range scan, full scan), execution plan concept and examples
32:00
14. Description of concepts and examples for optimizer joins (Nested Loop, Sort Merge, Hash Join)
37:39
15. Solve the verification problem
33:50
16. Problem Solving-1
34:13
17. Problem Solving-2
29:43

Published: 04/26/2022

Last updated: 05/20/2022

Reviews

All

21 reviews

4.2

21 reviews

leekoby
Reviews 4
∙
Average Rating 5.0
08/30/2023
5
100% enrolled
Thank you for the detailed and easy to understand explanation.
hyde31633589
Reviews 350
∙
Average Rating 5.0
12/22/2023
5
100% enrolled
I heard it well
everick93569
Reviews 319
∙
Average Rating 4.9
01/01/2024
5
35% enrolled
Thank you~!
aira
Reviews 4
∙
Average Rating 2.8
05/26/2023
2
100% enrolled
Rather than feeling like you understood and explained everything in the lecture, I often felt like you were just reading the text in some items. There were a lot of typos, and some of the answers to previous exam questions were wrong. In the case of previous exam questions, there are many materials with clear answers, but since you wrote completely different answers and moved on naturally, my trust in the lecture dropped. I also didn't understand why using the NVL function was the correct answer for question 14, so I looked it up in other past exam questions and found that the wording of the question was missing. (Lecture problem) MGR column value is printed as "9999" (Actual problem) If MGR column value is NULL, it is printed as "9999" I wonder if it is meaningful to teach incorrect content in a certification exam lecture where the correct and incorrect answers are clearly divided.
lululoving2880
Reviews 2
∙
Average Rating 2.5
01/05/2023
1
41% enrolled
You lecture so diligently, but it's not well organized for non-majors to listen to, so it doesn't stick in their heads. I think it would be better if you explained it by picking out key points that would fit the test!

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Getting SQL Developer (SQLD) Certification Part 3

4.2

What you will gain after the course

Anyone interested in getting SQLD certification? 🙋

Learning Objectives ✨

SQLD Certification Series 📚

Recommended for these people

HelloThis is usefulit

Curriculum

Reviews

usefulit's other courses

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Hello
This is usefulit