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Christian Paez

Software and Data Science

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The Ultimate SQL JOIN Cheat Sheet
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The Ultimate SQL JOIN Cheat Sheet

3
Comments
4 min read

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HackerRank SQL Preparation: Weather Observation Station 3(MySQL)
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HackerRank SQL Preparation: Weather Observation Station 3(MySQL)

3
Comments
1 min read
HackerRank SQL Preparation: Weather Observation Station 1(MySQL)
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HackerRank SQL Preparation: Weather Observation Station 1(MySQL)

2
Comments
1 min read
HackerRank SQL Preparation: Japanese Cities' Names(MySQL)
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HackerRank SQL Preparation: Japanese Cities' Names(MySQL)

3
Comments
1 min read
HackerRank SQL Preparation: Japanese Cities' Attributes(MySQL)
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HackerRank SQL Preparation: Japanese Cities' Attributes(MySQL)

5
Comments
1 min read
HackerRank SQL Preparation: Select by ID(MySQL)
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HackerRank SQL Preparation: Select by ID(MySQL)

4
Comments
1 min read
HackerRank SQL Preparation: Select All(MySQL)
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HackerRank SQL Preparation: Select All(MySQL)

2
Comments
1 min read
Automate binary execution at Startup with BASH
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Automate binary execution at Startup with BASH

1
Comments
1 min read
Simplifying PATH Management with Bash
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Simplifying PATH Management with Bash

3
Comments
2 min read
Automating Video editing with programming knowledge
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Automating Video editing with programming knowledge

1
Comments 2
2 min read
HackerRank SQL preparation; Revising the Select Query II(MySQL)
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HackerRank SQL preparation; Revising the Select Query II(MySQL)

1
Comments
1 min read
HackerRank SQL Preparation: Revising the Select Query I(MySQL)
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HackerRank SQL Preparation: Revising the Select Query I(MySQL)

4
Comments
1 min read
The Ultimate SQL SELECT Cheat Sheet
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The Ultimate SQL SELECT Cheat Sheet

5
Comments
3 min read
Bandit Level 23 Level 24
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Bandit Level 23 Level 24

10
Comments
1 min read
Bandit Level 22 Level 23
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Bandit Level 22 Level 23

1
Comments
1 min read
Bandit Level 21 Level 22
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Bandit Level 21 Level 22

1
Comments
1 min read
Bandit Level 20 Level 21
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Bandit Level 20 Level 21

2
Comments
1 min read
Bandit Level 19 Level 20
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Bandit Level 19 Level 20

2
Comments
1 min read
Bandit Level 18 Level 19
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Bandit Level 18 Level 19

Comments
1 min read
Bandit Level 17 Level 18
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Bandit Level 17 Level 18

2
Comments
2 min read
Bandit Level 16 Level 17
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Bandit Level 16 Level 17

2
Comments
2 min read
Unleashing Git Aliases: A Guide to Boosting Linux Productivity
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Unleashing Git Aliases: A Guide to Boosting Linux Productivity

2
Comments
3 min read
Bandit Level 15 Level 16
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Bandit Level 15 Level 16

3
Comments
1 min read
Bandit Level 14 Level 15
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Bandit Level 14 Level 15

Comments
1 min read
Bandit Level 13 Level 14
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Bandit Level 13 Level 14

4
Comments
1 min read
Bandit Level 12 Level 13
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Bandit Level 12 Level 13

6
Comments
2 min read
Bandit Level 11 Level 12
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Bandit Level 11 Level 12

1
Comments
1 min read
Unlocking Productivity and Linux Knowledge with Bash Aliases
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Unlocking Productivity and Linux Knowledge with Bash Aliases

1
Comments 2
3 min read
Bandit Level 10 Level 11
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Bandit Level 10 Level 11

1
Comments
1 min read
Bandit Level 9 Level 10
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Bandit Level 9 Level 10

2
Comments
2 min read
Bandit Level 8 Level 9
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Bandit Level 8 Level 9

2
Comments
1 min read
Bandit Level 7 Level 8
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Bandit Level 7 Level 8

1
Comments 2
1 min read
Bandit Level 6 Level 7
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Bandit Level 6 Level 7

1
Comments
1 min read
Bandit Level 5 Level 6
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Bandit Level 5 Level 6

3
Comments
2 min read
Bandit Level 4 Level 5
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Bandit Level 4 Level 5

1
Comments
2 min read
Bandit Level 3 Level 4
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Bandit Level 3 Level 4

2
Comments
1 min read
Bandit Level 2 Level 3
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Bandit Level 2 Level 3

1
Comments
1 min read
Bandit Level 1 Level 2
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Bandit Level 1 Level 2

1
Comments
1 min read
Bandit Level 0 Level 1
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Bandit Level 0 Level 1

2
Comments
1 min read
Bandit Level 0
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Bandit Level 0

2
Comments
1 min read
Portswigger’s lab write up: CORS vulnerability with trusted null origin
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Portswigger’s lab write up: CORS vulnerability with trusted null origin

5
Comments
2 min read
Portswigger’s lab write up: CORS vulnerability with basic origin reflection
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Portswigger’s lab write up: CORS vulnerability with basic origin reflection

7
Comments
2 min read
Portswigger’s lab write up: Clickjacking with a frame buster script
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Portswigger’s lab write up: Clickjacking with a frame buster script

4
Comments
2 min read
Who will win the 2022 Brazilian Presidential Election?, according to statistics.
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Who will win the 2022 Brazilian Presidential Election?, according to statistics.

4
Comments
1 min read
Portswigger’s lab write up: Clickjacking with form input data prefilled from a URL parameter
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Portswigger’s lab write up: Clickjacking with form input data prefilled from a URL parameter

5
Comments
2 min read
Portswigger’s lab write up: Basic clickjacking with CSRF token protection
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Portswigger’s lab write up: Basic clickjacking with CSRF token protection

2
Comments
2 min read
Portswigger’s lab write up: CSRF vulnerability with no defenses
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Portswigger’s lab write up: CSRF vulnerability with no defenses

7
Comments
2 min read
¿Cómo funcionan la decodificación y la codificación de las URL?
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¿Cómo funcionan la decodificación y la codificación de las URL?

3
Comments
2 min read
How does URL decoding and encoding work?
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How does URL decoding and encoding work?

9
Comments
2 min read
¿Por qué es importante normalizar los conjuntos de datos?
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¿Por qué es importante normalizar los conjuntos de datos?

6
Comments 2
2 min read
Why is it important to standardize datasets?
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Why is it important to standardize datasets?

13
Comments
2 min read
Web 1.0 vs 2.0 vs 3.0.
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Web 1.0 vs 2.0 vs 3.0.

7
Comments
2 min read
Web 1.0 vs 2.0 vs 3.0.
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Web 1.0 vs 2.0 vs 3.0.

6
Comments
2 min read
¿Por qué los errores de software se denominan "bugs"?
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¿Por qué los errores de software se denominan "bugs"?

7
Comments
2 min read
Why are Software bugs named bugs?
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Why are Software bugs named bugs?

7
Comments
2 min read
Subdominios vs. Hosts virtuales
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Subdominios vs. Hosts virtuales

6
Comments
2 min read
Subdomains vs. Virtual Hosts
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Subdomains vs. Virtual Hosts

14
Comments 2
1 min read
Sistemas comunes de codificación y decodificación
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Sistemas comunes de codificación y decodificación

3
Comments
2 min read
Common Encoding and Decoding systems
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Common Encoding and Decoding systems

6
Comments
2 min read
¿Cómo se estructura una URL?
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¿Cómo se estructura una URL?

Comments
2 min read
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