kjea

[kjea @kjea3]

https://t.co/Al1oo5gv3s

[Dr. Omar Suleiman @omarsuleiman]

Saleh Al Jafarawi. Murdered today by occupation collaborating gangs in Gaza. He was so happy celebrating these last few days after two years of somehow surviving. Chosen for shahada, and we are the ones at loss. Rahimahullah.

[kjea @kjea3]

https://t.co/jYa92Arezb

[kjea @kjea3]

@mybiliksewa @BilikSewaKL @biliksewa

Bilik sewa perempuan @ Cybersouth
Bilik ke 3 menghadap taman

bilik ada katil, almari, kipas

rumah ada stove, fridge, washing machine, aircond

contact zeha (0132419484)

[kjea @kjea3]

https://t.co/BHHCyeAHYk

[kjea @kjea3]

@olympicmas I don't understand why suddenly the final result becomes REL? can anyone help to explain? @olympicmas

[kjea @kjea3]

@adrixtacy but why Shah Firdaus got REL status?

[kjea @kjea3]

@askrapidkl kepada pemilik, sila tuntut dikaunter MRT Raja Uda

[Python Programming @PythonPr]

How to create Android Application using Python | Py to Apk
#python
https://t.co/s40l3Yo1Lr

[kjea @kjea3]

Wawww boleh dapat freee ilmu mahal ni! @firdhausmntzr

[Firdhaus Muntazar @firdhausmntzr]

SATU KALI LAGI! PRODUK KESIHATAN!

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[Firdhaus Muntazar @firdhausmntzr]

CARA NAMAKAN CAMPAIGN FACEBOOK ATAU INSTAGRAM ADS PALING SISTEMATIK DAN SENANG CARI

Okay ini tutorial agak panjang.
Tapi saya janji bapak menolong anda pada masa depan.

Saya ada beberapa clients.
Alhamdulillah -- saya dikelilingi dengan semua yang berhati mulia.
TAPI!

[Alif Hossain @alifcoder]

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[Python Developer @PythonDvz]

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[Aakash Kanojiya @Kanojiyaaakash1]

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[Chinonso @PromiseNonso_]

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[Hugo Kornelis @Hugo_Kornelis]

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[kjea @kjea3]

@scheekeong I don't know much... but I really hope all cytro bagi rakyat tahu dan faham benda2 pencapaian like this! Bukan busuk busukkan or buruk burukkan orang... bila banyak achievement , kami yang marhaen ni akan makin setuju makin yakin. Please... dunia nak kiamat dah...

[Astro AWANI @501Awani]

MetMalaysia memaklumkan Peralihan Monsun yang dijangka bermula 19 September ini akan membawa hujan lebat berserta angin kencang dalam jangka masa singkat.

Ia berpotensi menyebabkan banjir kilat serta kerosakan pada struktur tidak kukuh.

Ikuti berita terkini di https://t.co/54tbq5BUpE
#AWANInews

[Shalini Tewari @maybeshalinii]

Don't forget to understand these essential SQL topics if you're just starting out.

1. SQL Basics
- SELECT Statement:
It's like asking the database for specific information.
- FROM Clause:
Tells the database where to look for that information.
- WHERE Clause:
Filters out the stuff you don't need.
- ORDER BY Clause:
Arranges the results in a specific order.

2. Data Manipulation
- INSERT: Adds new data.
- UPDATE: Changes existing data.
- DELETE: Removes data.
- MERGE: Combines these actions.

3. Data Definition
- CREATE TABLE: Makes a new table.
- ALTER TABLE: Edits an existing table.
- DROP TABLE: Deletes a table.
- INDEXES: Helps with finding data quickly.

4. Constraints
- PRIMARY KEY: Ensures each row is unique.
- FOREIGN KEY: Keeps data relationships intact.
- UNIQUE: Ensures values are unique.
- DEFAULT: Sets a value if none is given.

5. Joins (Really Important)
- INNER JOIN: Combines data from different tables.
- LEFT JOIN: Gets all data from one table and matching data from another.
- RIGHT JOIN: Opposite of LEFT JOIN.
- FULL JOIN: Gets data if it's in either table.
- SELF JOIN: Links data within the same table.

6. Subqueries:
- Correlated Subqueries: Subqueries connected to the main query.
- Scalar Subqueries: Subqueries that return a single value.
- Subquery in FROM Clause: Using a subquery as a table.

7. Aggregation Functions:
- SUM, COUNT, AVG, MAX, MIN: Math on groups of data.
- GROUP BY: Groups data before doing math.
- HAVING: Filters groups based on math results.

8. Views:
- CREATE VIEW: Makes a pretend table.
- ALTER VIEW: Changes the pretend table.
- DROP VIEW: Deletes the pretend table.

9. Transactions:
- BEGIN TRANSACTION, COMMIT, ROLLBACK: Ensures data stays safe and consistent.
- ACID Properties (Important): Rules for safe transactions.

10. Database Security:
- GRANT and REVOKE: Decides who can do what.
- Roles: Groups of permissions for users.

11. Normalization (Important):
- 1NF, 2NF, 3NF, BCNF, 4NF:
Ways to organize data for efficiency and accuracy.

12. Indexes:
- Clustered vs. Non-Clustered Indexes: Different ways to find data quickly.

13. Database Management Systems (DBMS):
- Different software tools for working with databases, like MySQL etc.

SQL has many more things to learn, but these topics will give you a strong starting point if you're new to it.