DBMS


A Visual Explanation of SQL Joins




SELECT * FROM tablename
          WHERE somefield='something'
          ORDER BY RAND() LIMIT 5





CREATE TABLE employee_records2 (name VARCHAR(50), employeeID INT)

CREATE INDEX id_index ON employee_records2(employeeID)



SELECT r.id, r.weight, r.des, GROUP_CONCAT(b,id
FROM Rule r , B b
Where r.id = b.id
GROUP BY r.id










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