i_simplify on Instagram: "Foreign Key ante confuse avvalsina topic kaadu bro 🔗 Oka table ni inko table tho connect cheyyadaniki use chese simple concept. Real-world example tho ardham ayite, SQL easy aipothundi 💡 Save cheskoni malli chudandi ✔️ @i__simplify 📘 TOPIC NOTES (FOREIGN KEY – SIMPLE) Foreign Key oka table ni inko table tho connect cheyyadaniki use avthundi Usually parent table lo unna Primary Key ni reference chestundi Two tables lo common column (like ID) valla link create avthundi

Learn SQL: Primary Key

SQL queries to change the column type

1. Modify the following SQL command so that the RepID column is the PRIMARY KEY for the table and the default value of Y is assigned to the Comm column. (The Comm column indicates whether the sales representative earns commission.) CREATE TABLE storereps ( repID NUMBER(5), firstname VARCHAR2(15), lastname VARCHAR2(10), comm CHAR(1) DEFAULT 'Y', PRIMARY KEY (repID) ); 2. Change the STOREREPS table so that NULL values can't be entered in the name co

Create Table SQL Server with Foreign Key Constraints

How to create a SQL Server foreign key

SQL Server Foreign Key Hierarchy Order and Dependency List Script