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.
Strategy 1
*Testing for timing, high reliability and performance.
Reasons.
Every device and system configuration must be tested including the software setup,definitions and rules must be tested with an attempt to force the system and its intergrals to fail. Every failure(if there are any) must be evaluated and errors corrected.
Strategy 2
*Measuring response levels at the lowest set point of the alarm.
Reasons.
This is to check the trigger points of the alarms in the system and the response must be recorded as well as changing the intervals of alarm triggers so as to evaluate the time taken for the alarm to respond at the lowest point of it to be triggered.
Its 110010. i hope this helped
The PHP function that is executed is a connection to a database that cannot be made is the die() function.
An error is an undesirable programming outcome. The mistake is a subset of the error. Error management is a vital component of any website or programme.
Error handling is a mechanism for identifying errors that a programme makes and taking appropriate corrective action. This can be done by utilising die() method.
When a programming problem occurs, the software will halt further code execution and display the appropriate error message to the user. The die() function displays a message and terminates the running of the programme.
The connect() function in PHP is one that is used to establish a connection to a database.
The end() method in PHP is used to locate the final element of the specified array. The end() function updates an array's internal pointer to refer to the final element and returns that element's value.
The isset() function examines whether a variable is set, which implies that it has to be declared and is not NULL. If the variable is present and not NULL, this function will return true; otherwise, it will return false.
To learn more about PHP click here:
brainly.com/question/29740624
#SPJ4
Answer:
Creative Commons is actually a license that is applied to a work that is protected by copyright. It's not separate from copyright, but instead is a way of easily sharing copyrighted work. ... Copyright confers some pretty heavy duty protections so that others don't use your work without your permission.
Explanation:
