The number of records or rows in a table using MySQL can be got by using the COUNT statement.
Explanation:
- To counts all of the rows in a table, whether they contain NULL values or not, use COUNT
- That form of the COUNT() function basically returns the number of rows in a result set returned by a SELECT statement
- The SQL COUNT() function returns the number of rows in a table satisfying the criteria specified in the WHERE clause.
- It sets the number of rows or non NULL column values.
- COUNT() returns 0 if there were no matching rows.
- The SQL COUNT function is an aggregate function that returns the number of rows returned by a query. You can use the COUNT function in the SELECT statement to get the number of employees, the number of employees in each department, the number of employees who hold a specific job, etc.
Answer:
the mistake that was made by allen is that he was not suppose to hire a highly proficient technician to install the heating and cooling system in the granary.
Where is the following banks that is listed?
Answer:
The answer is "Option C".
Explanation:The packet includes clients and modifies information both of these are often referred to as the payload. To achieve payload data by monitor data to get the control signals. It is a unit that will be an information material consisting of a specific network path into such a single packet and web browser transmissions and other types of networks will be used in the IP transmissions, in this, the data packet may arrive in out of order, and the wrong choice can be defined as follows:
- In choice A, when the connection is good so, all the data is sent on the computer, that's why it is incorrect.
- In choice B, It is wrong because it can't send back to the server.
- In choice D, It can't be sent in order, that's why it is wrong.
