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SKILL JOURNEY

SQL

Talk to databases

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Select All
+60 XP · Query everything.
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CHAPTER 01
Foundations
Lay the groundwork
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1YOU ARE HERE
Lesson 1+60 XP
Select All
Query everything.
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Lesson 2+70 XP
Select Columns
Specific columns.
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Lesson 3+90 XP
Where
Filter rows.
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Lesson 4+90 XP
Order By
Sort.
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Lesson 5+70 XP
Limit
Limit rows.
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CHAPTER 02
Core Concepts
Build the core skills
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Lesson 6+110 XP
Insert
Add a row.
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Lesson 7+110 XP
Update
Change rows.
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Lesson 8+100 XP
Delete
Remove rows.
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Lesson 9+90 XP
Count
Aggregate.
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Lesson 10+130 XP
Group By
Group rows.
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CHAPTER 03
Building Blocks
Wire things together
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Lesson 11+140 XP
Inner Join
Combine tables.
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Lesson 12+120 XP
Create Table
DDL.
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Lesson 13+100 XP
Distinct
Unique rows.
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Lesson 14+110 XP
Like
Pattern match.
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Lesson 15+110 XP
In
Match a set.
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CHAPTER 04
Advanced Patterns
Level up your craft
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Lesson 16+110 XP
Between
Range filter.
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Lesson 17+140 XP
Left Join
Keep left rows.
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Lesson 18+140 XP
Having
Filter groups.
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Lesson 19+120 XP
Alter Table
Add a column.
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Lesson 20+130 XP
Create Index
Speed lookups.
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SQL Master
20 lessons left to claim the crown