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Skill Topic ยท Cinematic

๐Ÿ“˜ SQL DEFAULT - Automatic Default Value

DEFAULT constraint se agar INSERT me value na do to automatic ek predefined value set ho jaati hai!โ€ฆ

Overview
๐ŸŒŸ

๐Ÿ“˜ SQL DEFAULT - Automatic Default Value โ€” Quick Facts

๐Ÿ“Œ

OrderID: CustomerID

๐ŸŽฏ

101: 1

Topic 1
๐Ÿ“š

๐Ÿ“Œ DEFAULT Kya Hai?

๐Ÿ“š DEFAULT constraint ek automatic fallback value set karta hai. Jab INSERT statement meโ€ฆ
Topic 2
๐Ÿ’ก ๐Ÿ“Š ๐Ÿ”ฌ

๐Ÿ“Œ DEFAULT in CREATE TABLE

๐Ÿ’ก `sql CREATE TABLE Orders ( OrderID INT PRIMARY KEY, CustomerID INT NOT NULL, OrderDateโ€ฆ
Topic 3
๐Ÿ”’

๐Ÿ“Œ Common DEFAULT Values

๐ŸŽฏ `sql CREATE TABLE Products ( ProductID INT PRIMARY KEY, ProductName VARCHAR(200) NOTโ€ฆ
Topic 4
โญ

๐Ÿ“Œ DEFAULT with NOT NULL (Best Combo)

โญ `sql CREATE TABLE Users ( UserID INT PRIMARY KEY, Username VARCHAR(50) NOT NULL, Roleโ€ฆ
Topic 5
๐Ÿ“ฅ ๐Ÿ“ฅ ๐Ÿง  ๐Ÿ”ฌ ๐Ÿ’ก ๐ŸŽฏ

๐Ÿ“Œ ALTER TABLE se DEFAULT Add/Remove

๐Ÿ”‘ MySQL: `sql -- Add DEFAULT: ALTER TABLE Customers ALTER City SET DEFAULT 'Unknown'; --โ€ฆ
Topic 6
โœจ ๐Ÿ“Š ๐Ÿ”ฌ

๐Ÿ“Œ DEFAULT Override Karna

โœจ `sql -- DEFAULT value use nahi karni? Explicit value do: INSERT INTO Orders (OrderID,โ€ฆ
Topic 7
๐Ÿ”’

๐Ÿ“Œ DEFAULT with System Functions

๐ŸŒŸ `sql -- Auto timestamps: CREATE TABLE AuditLog ( LogID INT PRIMARY KEY, Actionโ€ฆ
Topic 8
๐Ÿš€

๐Ÿ“Œ Real-World Example

๐Ÿš€ `sql CREATE TABLE Customers ( CustomerID INT PRIMARY KEY AUTO_INCREMENT, FirstNameโ€ฆ
Topic 9
๐Ÿ“ฅ ๐Ÿ“ฅ ๐Ÿง  ๐Ÿ”ฌ ๐Ÿ’ก ๐ŸŽฏ

โœ… Summary

๐Ÿ“š KEY POINTS: - DEFAULT ek automatic fallback value set karta hai INSERT me missing columnsโ€ฆ
Quick Quiz
๐Ÿง  QUIZ TIME

Quiz โ€” Question 1

๐Ÿ“˜ SQL DEFAULT - Automatic Default Value ka sabse sahi definition kya hai?

Complete! ๐ŸŽ‰
COMPLETE

๐Ÿ“˜ SQL DEFAULT - Automatic Default Value Complete!

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โœ…

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