#Sql Data Types

Top 20 SQL Concepts That Power Databases ! . في مدينة ساحلية لا تُذكر على الخرائط، كان هناك مبنى مهجور يُعرف بين الناس باسم البيت الذي لا يُضاء. لا أحد يعرف متى بُني، ولا من سكنه أولًا، لكن النوافذ كانت دائمًا سوداء، حتى في عزّ النهار. آدم، في السادسة والعشرين من عمره، لم يكن يؤمن بالقصص التي يرددها الناس. كل ما سمعه عن اختفاءات وهمسات ليلية اعتبره مبالغة رخيصة. لكن الشيء الوحيد الذي أقلقه فعلًا: أن اسم والده كان مكتوبًا داخل ملف قديم في أرشيف البلدية… وتحت خانة «آخر عنوان»: ذلك البيت. في ليلة ثقيلة الرطوبة، قرر آدم الدخول. لم يحمل مصباحًا، فقط هاتفه وفضوله. ما إن أغلق الباب خلفه حتى شعر أن الهواء تغيّر. كان البيت يتنفس ببطء. الجدران لم تكن متشققة كما توقع، بل ملساء بشكل غير طبيعي، وكأنها لم تُمس منذ سنوات. في الممر الطويل، وجد صورًا معلّقة، جميعها لأشخاص ينظرون مباشرة إلى العدسة… والشيء المرعب؟ كانوا يشبهونه. في الطابق العلوي، غرفة واحدة فقط كانت مفتوحة. على الطاولة دفتر جلدي. وعندما لمسه، انفتح من تلقاء نفسه. الصفحة الأولى حملت تاريخًا قديمًا، وتحتها جملة واحدة: «إن كنت تقرأ هذا، فقد حان دورك.» بدأت الصفحات تتحرك، تكتب نفسها بنفسها، تحكي قصة رجل حاول الهرب من شيء يسكنه…

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🗄️ SQL Command Types Explained 🧱 DDL (Data Definition Language) Defines database structure. Examples: CREATE, ALTER, DROP, TRUNCATE ✍️ DML (Data Manipulation Language) Works with table data. Examples: INSERT, UPDATE, DELETE, SELECT 🔐 DCL (Data Control Language) Controls access and permissions. Examples: GRANT, REVOKE 🔄 TCL (Transaction Control Language) Manages database transactions. Examples: COMMIT, ROLLBACK, SAVEPOINT #SQL #DDL #softwareengineer #coder #Database #DBMS #CodingReels #LearnSQL #ComputerScience

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SQL Commands Types 🤯 SQL (Structured Query Language) has several types of commands that serve different purposes when working with databases. 1️⃣ Data Definition Language (DDL) Commands: - `CREATE TABLE`, `ALTER TABLE`, `DROP TABLE` - Used to define the structure of database tables. 2️⃣ Data Manipulation Language (DML) Commands: - `SELECT`, `INSERT`, `UPDATE`, `DELETE` - Used to retrieve, add, modify, and remove data within database tables. 3️⃣ Data Control Language (DCL) Commands: - `GRANT`, `REVOKE` - Used to control user access and permissions for the database. 4️⃣ Transaction Control Commands: - `COMMIT`, `ROLLBACK`, `SAVEPOINT` - Used to manage database transactions and ensure data integrity. Knowing the different types of SQL commands and when to use them is essential for any data professional. DDL commands help set up the database structure, DML commands allow you to work with the data, DCL controls user access, and transaction commands ensure data reliability. Mastering all these SQL command types will make you a power user when working with relational databases! #SQL #StructuredQueryLanguage #DatabaseManagement #DataAnalysis #DataScience #Programming #CodingSkills #DDL #DML #DCL #TransactionControl #RelationalDatabases #DataProfessional #SQLCommands #SQLTips #SQLExpert #SQLLearning #DataLiteracy #DataSkills

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SQL For Beginners: Pattern Matching 🙌 #learning #sql #data #analytics #businessintelligence #careers

nobody talks about SQL but it is one of the most requested skills in every data, backend, and analytics job posting right now. if you can write a clean query you are already ahead of half the applicants. save this and actually start this week because this one skill alone has landed people six figure jobs. #sql #datascience #machinelearning #ai #cs