Table of Contents
- 1 How many parameters does the Mysqli_query () function accept?
- 2 How many parameters Mysqliquery At least it takes?
- 3 When using the mysqli_query () function to execute a query the two arguments required by the function are the?
- 4 Which keyword is used to get unique values from the database?
- 5 How do you retrieve data from database in PHP using mysqli?
- 6 How do you select unique records from a table?
How many parameters does the Mysqli_query () function accept?
two parameters
PHP uses mysqli query() or mysql_query() function to create or delete a MySQL database. This function takes two parameters and returns TRUE on success or FALSE on failure.
What does the function Mysqli_query () do?
The query() / mysqli_query() function performs a query against a database.
How many parameters Mysqliquery At least it takes?
2 parameters
Warning: mysqli_query() expects at least 2 parameters, 1 given.
What are the parameters of the function mysqli_query?
MySQLi procedural style functions expect the first parameter to be a valid MySQLi connection link. For example, mysqli_query expects a database link as the first argument and the actual SQL query as a second argument. Assuming you have this or similar connection code somewhere at the start of you script.
When using the mysqli_query () function to execute a query the two arguments required by the function are the?
2. Query database. Queries are made by using the function mysqli_query() and providing two arguments, the database connection handle and the SQL to send.
Why is Mysqli_connect () Used explain with the help of an example?
The mysqli_connect() function in PHP is used to connect you to the database. In the previous version of the connection mysql_connect() was used for connection and then there comes mysqli_connect() where i means improved version of connection and is more secure than mysql_connect().
Which keyword is used to get unique values from the database?
The distinct keyword is used with SELECT statement to retrieve unique values from the table. Distinct removes all the duplicate records while retrieving records from any table in the database.
What is the output of Numrows () function?
Parameters: This function accepts single parameter $result (where $result is a MySQL query set up using mysqli_query()). It is a mandatory parameter and represents the result set returned by a fetch query in MySQL. Return Value: It returns the number of rows present in a result set.
How do you retrieve data from database in PHP using mysqli?
To successfully fetch data from MySQL using mysqli extension in PHP you need to perform more or less three actions: connect, execute prepared statement, fetch data. Connection: The connection is really simple. There should always be only 3 lines of code for opening a connection.
How do we use the distinct statement what is its use?
The SQL DISTINCT keyword is used in conjunction with the SELECT statement to eliminate all the duplicate records and fetching only unique records. There may be a situation when you have multiple duplicate records in a table.
How do you select unique records from a table?
The unique values are fetched when we use the distinct keyword.
- SELECT DISTINCT returns only distinct (different) values.
- DISTINCT eliminates duplicate records from the table.
- DISTINCT can be used with aggregates: COUNT, AVG, MAX, etc.
- DISTINCT operates on a single column.
Which one of the following methods is responsible for sending the query to the database?
mysqli_query()
Explanation: The method mysqli_query() is responsible for sending the query to the database.