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SQL
String functions
Clean and transform text.
0
/ 20 solved
All levels
Basic (6)
Intermediate (7)
Advanced (7)
All
To do
Solved
1
Join text together
Basic
2
Upper and lower case
Basic
3
Length of text
Basic
4
First letters
Basic
5
Trim spaces
Basic
6
Replace text
Basic
7
Email username
Intermediate
8
Email domain
Intermediate
9
Substring
Intermediate
10
Find a position
Intermediate
11
Proper case
Intermediate
12
Pad numbers
Intermediate
13
Case-insensitive search
Intermediate
14
Clean phone numbers
Interview
Advanced
15
Last 10 digits
Advanced
16
Count words
Advanced
17
Names as a list
Advanced
18
Extract a code
Advanced
19
Palindromes
Advanced
20
Most common first letter
Interview
Advanced