SQLite Interview Questions and Answers

SQLite was developed by Dwayne Richard Hipp in the year 2000

SQLite was primarily designed for the purpose that while operating a program, there will not be a requirement of administration or set-up.

• The code for the SQLite is in the public domain therefore SQLite is free to use
• SQLite does not require the server to operate
• SQLite allows the user to work on multiple databases at the same time
• There is no need to install "SQLite" before using it.
• SQLite has the capability of creating the in-memory database, and the user can work very fast with it.

This particular SQLite Question and Answer defines explicitly the difference between SQL and SQLite.

The standard commands in SQLite are:-

• SELECT
• CREATE
• INSERT
• UPDATE
• DROP
• DELETE

Here are some of the areas:-

• Embedded devices
• Websites
• File archives
• Testing
• Data Analysis

SQLite storage classes include the following:

• Null: It has a NULL value.
• Integer: The value is a signed integer (5,6,7, etc.)
• Real: The numbers with a decimal point (1.2,3.4 etc.).The real numbers are stored as an 8 byte IEEE floating point number.
• Text: It holds a text string.
• BLOB: The value is a blob of data, and it is stored exactly as it was input.

There are four operators in SQLite:-

• Arithmetic operators(+,-,*,/,%)
• Comparison operators(==,=,!=,<>,<,>,>=,<=,!<,!>
• Logical operators(AND, BETWEEN, EXISTS, IN, NOT IN, LIKE, GLOB, NOT, OR, IS NULL, IS, IS NOT, ||, UNIQUE)
• Bitwise operators(&, I,~,<<,>>)

Point to be noted: Make sure that you go through this Q&A twice as this is the favorite SQLite Questions and Answers for fresher and experienced as well.

SQLite incorporates Boolean as an integer variable rather than having a separate Boolean class. Boolean values are stored in SQLite as integers 0 which means false and 1 which means true.

The command “sqlite3” is used to create a database.

Syntax:-$sqlite3 DatabaseName.db