MySQL টেবিলে নির্দিষ্ট রেঞ্জের মান সিলেক্ট করতে WHERE ক্লজ ব্যবহার করুন।
টেবিল তৈরি করা
mysql> create table DemoTable ( CustomerId int NOT NULL AUTO_INCREMENT PRIMARY KEY, CustomerName varchar(200), CustomerAge int, isRegularCustomer bool ); Query OK, 0 rows affected (0.57 sec)
রেকর্ড ইনসার্ট করা
mysql> insert into DemoTable(CustomerName,CustomerAge,isRegularCustomer)values('Chris',24,true); Query OK, 1 row affected (0.14 sec)
mysql> insert into DemoTable(CustomerName,CustomerAge,isRegularCustomer)values('Robert',26,false); Query OK, 1 row affected (0.22 sec)
mysql> insert into DemoTable(CustomerName,CustomerAge,isRegularCustomer)values('Mike',27,false); Query OK, 1 row affected (0.14 sec)
mysql> insert into DemoTable(CustomerName,CustomerAge,isRegularCustomer)values('Larry',22,true); Query OK, 1 row affected (0.16 sec)
mysql> insert into DemoTable(CustomerName,CustomerAge,isRegularCustomer)values('Sam',30,true); Query OK, 1 row affected (0.20 sec)
mysql> insert into DemoTable(CustomerName,CustomerAge,isRegularCustomer)values('Carol',26,true); Query OK, 1 row affected (0.16 sec)
রেকর্ড প্রদর্শন
mysql> select * from DemoTable;
আউটপুট:
+------------+--------------+-------------+-------------------+ | CustomerId | CustomerName | CustomerAge | isRegularCustomer | +------------+--------------+-------------+-------------------+ | 1 | Chris | 24 | 1 | | 2 | Robert | 26 | 0 | | 3 | Mike | 27 | 0 | | 4 | Larry | 22 | 1 | | 5 | Sam | 30 | 1 | | 6 | Carol | 26 | 1 | +------------+--------------+-------------+-------------------+ 6 rows in set (0.00 sec)
রেঞ্জ অনুযায়ী রেকর্ড সিলেক্ট করা (বয়স ২৪-২৭ এবং রেগুলার কাস্টমার)
mysql> select CustomerId,CustomerName,CustomerAge,isRegularCustomer from DemoTable where isRegularCustomer=true AND CustomerAge >=24 AND CustomerAge <= 27;
আউটপুট:
+------------+--------------+-------------+-------------------+ | CustomerId | CustomerName | CustomerAge | isRegularCustomer | +------------+--------------+-------------+-------------------+ | 1 | Chris | 24 | 1 | | 6 | Carol | 26 | 1 | +------------+--------------+-------------+-------------------+ 2 rows in set (0.00 sec)
ব্যাখ্যা: AND অপারেটর দিয়ে একাধিক শর্ত জোড়া দেয়া হয়েছে। BETWEEN 24 AND 27ও ব্যবহার করা যেতো।
