9/14/2

lib/models/sql

@@ -0,0 +1,66 @@
+-- to check duplicate CarRegistration
+SELECT 
+    `driverID`,
+    COUNT(*) AS `count`,created_at
+FROM 
+    `CarRegistration`
+GROUP BY 
+    `driverID`
+HAVING 
+    COUNT(*) > 1;
+--  
+
+
+--  to delete duplicate
+WITH CTE AS (
+    SELECT 
+        MIN(`id`) AS `min_id`
+    FROM 
+        `CarRegistration`
+    GROUP BY 
+        `driverID`
+)
+DELETE FROM 
+    `CarRegistration`
+WHERE 
+    `id` NOT IN (SELECT `min_id` FROM CTE);
+
+--  get for employee
+SELECT
+    d.`maritalStatus` AS NAME,
+    COUNT(*) AS `count`
+FROM
+    `driver` d
+WHERE
+    d.`maritalStatus` IN('Maryam', 'Salma', 'Mena') AND DATE(d.created_at) = CURDATE()
+GROUP BY
+    d.`maritalStatus`
+ORDER BY
+    COUNT
+DESC
+    
+    
+    -- get driver without cars 
+
+    SELECT
+    d.id, d.phone
+FROM
+    `driver` d
+WHERE
+    d.id NOT IN (SELECT driverID FROM CarRegistration);
+
+
+    -- car without drivers
+
+    SELECT
+   cr.created_at, cr.driverID
+FROM
+    `CarRegistration` cr
+WHERE
+    cr.driverID NOT IN (SELECT id FROM driver);
+
+
+
+----- driver 
+    SELECT phone,email,name_arabic,national_number FROM `driver`  WHERE national_number ='29209290106392'
+ORDER BY `driver`.`created_at` DESC