SELECT 1 SQL statement

Whats the meaning of SELECT 1 SQL statement? I have come across this sql select * from category where exists ( select (1) from products where category.id = products.id ) . . .

• 4
• 0
• 708

Ubuntu: Extract log within a period

How to get all the log entries in the last 2 hours? I am running apache on Ubuntu. . . .

• 3
• 0
• 486

Raspberry pi - how to mount Windows shares?

I am trying to mount Windows share files(password protected) on Pi I am using sudo mount -t cifs -o username=yourusername,password=yourpassword //MyPC/share1 /mnt/myfolder This is not working. . . .

• 2
• 1
• 659

MySQL: List all foreign keys in a table

How do i list all the foreign keys in a MySQL table?   . . .

• 3
• 1
• 631

Drop table Mysql bypass foreign key constraint

How to get around foreign key constraint check while dropping tables? mysql> drop table users; ERROR 1217 (23000): Cannot delete or update a parent row: a foreign key constraint fails mysql> . . .

• 2
• 1
• 698

Laravel Unsupported driver [mongodb] error

I am trying to use Laravel5.3  with MongoDB. Already installed php driver and MongoDB package. Still getting error: InvalidArgumentException in ConnectionFactory.php line 237: Unsupported driv . . .

• 7
• 0
• 1646