Php mysql interview questions and answers for experienced pdf

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+ Php+mysql Interview Questions and Answers, Question1: Who is the father of PHP and explain the changes in PHP versions? Question2: How can we. MySQL questions are very usefull for freshers to learn easly. Here we provide most common interview question and answers for mysql and rdbms. Questions and Answers for Experienced | Advanced PHP MYSQL Interview Questions. Here is some most commonly asked interview qyestions collections about MySQL. Download Complete PHP Faqs in you are a PHP programmer or an.

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Top 50 MySQL Interview Questions & Answers PHP Driver; JDBC Driver; ODBC Driver; C WRAPPER; PYTHON Driver .. Download PDF. Top 50 MySQL Interview Questions & · Answers. 1. What is MySQL? MySQL is an open source DBMS which is built, supported and distributed by PHP Driver. QUESTIONS. REAL TIME INTERVIEW QUESTIONS & ANSWERS .. Answers:We can connect Mysql Database with PHP using both Procedural and .. hidden features like you can image for games, create files, GTK.

How many columns can be used for creating Index? MySQL 5. Set varchar to occupy n bytes and it will take only the required space and will not use the n bytes. Question 4. This provides better overall performance because the query has to be parsed only once, and less information needs to be sent between the server and the client. What is difference between clustered index and non clustered index?

There is only one primary key for a table. Primary Key is also a candidate key. By common convention, candidate key can be designated as primary and which can be used for any foreign key references. For MySQL 5. For versions lower than 5. NOW is used to show current year,month,date, hours,minutes and seconds.

Tables that are present in memory is known as HEAP tables. These tables are commonly known as memory tables. They are used for high speed storage on temporary basis. Save my name, email, and website in this browser for the next time I comment.

This site uses Akismet to reduce spam. Question 1. Rasmus Lerdorf is known as the father of PHP. Question 2. The main idea behind this is to use Java script submit function in order to submit the form without explicitly clicking any submit button. You can attach the document.

Question 3. Question 4.

Mysql Interview Questions

Indirectly, that means that you can only access the data by the field names, and not by their offsets numbers are illegal property names. Question 5. That is, a variable name which can be set and used dynamically.

Question 6. Question 7. Can We Use Include "abc. Yes we can use include more than one time in any page though it is not a very good practice. Question 8. Create Table Employee eno Int 2 ,ename Varchar 10? Question 9. You can find these specific information in PHP Manual.

Question As of version 4. In php. What Is Meant By Nl2br? For example: All of those are open source resource. Security of Linux is very very more than windows. Apache is a better server that IIS both in functionality and security.

Top 50 MySQL Interview Questions & Answers

MySQL is world most popular open source database. PHP is more faster that asp or any other scripting language. One of the main advantages of programming is its ease of modification; objects can easily be modified and added to a system there by reducing maintenance costs.

Interview questions experienced php answers for pdf and mysql

It allows for more complicated and flexible interactions. For some systems, an approach can speed development time since many objects are standard across systems and can be reused. Components that manage dates, shipping, shopping carts, etc. Sometimes a function is best shared among a number of different classes.

Such functions can be declared either as member functions of one class or as global functions. In either case they can be set to be friends of other classes, by using a friend specifier in the class that is admitting them.

Such functions can use all attributes of the class which names them as a friend, as if they were themselves members of that class. A friend declaration is essentially a prototype for a member function, but instead of requiring an implementation with the name of that class attached by the double colon syntax, a global function or member function of another class provides the match.

Convert all applicable characters to HTML entities This function is identical to htmlspecialchars in all ways, except with htmlentities , all characters which have HTML character entity equivalents are translated into these entities.

PHP MySQL Interview Questions and Answers

By default the maximum size is 2MB. Though i am not sure if this is wrong or not, With the exif extension you are able to work with image meta data. You can maintain two separate language file for each of the language. Abstract class: Abstract methods are the methods, which are declare in its class but not define. The definition of those methods must be in its extending class. Interfaces are one type of class where all the methods are abstract.

That means all the methods only declared but not defined. All the methods must be defined by its implemented class. JavaScript does not have any networking capabilities as it is designed to work on client site. As a result we can not send mails using JavaScript. But we can call the client side mail protocol mailto via JavaScript to prompt for an email to send. MySQL set can take zero or more values but at the maximum it can take 64 values.

What Do These Files Contain? The files have names that begin with the table name and have an extension to indicate the file type. In PHP an extended class is always dependent on a single base class, that is, multiple inheritance is not supported. Both of them are open source software so free of cost , support cross platform. If two rows will hawe the same value in col1 it will try to sort them according to col2 and so on.

Set char to occupy n bytes and it will take n bytes even if u r storing a value of n-m bytes. Set varchar to occupy n bytes and it will take only the required space and will not use the n bytes.

Calculate the md5 hash of a string. The hash is a character hexadecimal number. I use it to generate keys which I use to identify users etc. If I add random no techniques to it the md5 generated now will be totally different for the same string I am using.

What Is 'float' Property In Css? The float property sets where an image or a text will appear in another element. A namespace is a container and allows you to bundle up all your functionality using a unique name. But it is not always necessary to use namespace.

There are many ways to accomplish the security tasks but the most common 7 ways are. What Is A Session? There is only one session object available to your PHP scripts at any time. Data saved to the session by a script can be retrieved by the same script or another script when requested from the same visitor.

Sessions are commonly used to store temporary data to allow multiple PHP pages to offer a complete functional transaction for the same visitor. This repository is bringing higher level programming to PHP. It eases installation by bringing an automated wizard, and packing the strength and experience of PHP users into a nicely organised OOP library.

What Is A Persistent Cookie? When the browser is closed, temporary cookies will be erased. You should decide when to use temporary cookies and when to use persistent cookies based on their differences:. If the table has an index for the columns in question, MySQL can quickly determine the position to seek to in the middle of the data file without having to look at all the data.

Write command to import an mysql file? How to find Second highest salary from a table? Explain Triggers and Stored Procedures?

And for php interview experienced pdf questions answers mysql

What is difference between Group by and order by clause? What is difference between Inner vs Self vs Cross? In which language it is written? Explain the difference between mysql and mysql interfaces in PHP?

Basic & Advanced MySQL Interview Questions with Answers

What are the indexes in MySQL? What is difference between clustered index and non clustered index? List some MySql advantages and disadvantages?

MySQL is great for database enabled websites while Oracle is made for enterprises. MySQL is portable. Disadvantages of MySql. MySQL is not so efficient for large scale databases. Transactions are not handled very efficiently. How do you change a password for an existing user via mysqladmin?