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## What is size of Smallint in bytes?

A **2-byte** integer data type used in CREATE TABLE and ALTER TABLE statements. Range: -32768 .. 32767.

## What is a Smallint in SQL?

The SMALLINT data type **stores small whole numbers that range from –32,767 to 32,767**. The maximum negative number, –32,768, is a reserved value and cannot be used. The SMALLINT value is stored as a signed binary integer.

## How many decimal places can Smallint have in SQL?

Choose SMALLINT when you need exact numeric integers from -32,768 to 32,767. It uses 2 bytes of storage and has **four digits of decimal** precision.

## What is the difference between Smallint and integer?

The INTEGER and SMALLINT data types hold small whole numbers. … INTEGER values have 32 bits and can represent whole numbers from –2 ^{31}–1 through 2 ^{31}–1. SMALLINT values have only **16** bits. They can represent whole numbers from –32,767 through 32,767.

## Is string is a data type?

A string is **generally considered a data type** and is often implemented as an array data structure of bytes (or words) that stores a sequence of elements, typically characters, using some character encoding.

## What is difference between BigInt and int?

The int type takes 4 byte signed integer i.e. 32 bits ( 2^{32} values can be stored). The BigInt type takes **8 byte** signed integer i.e. 64 bits (2^{64} values can be stored). Let us see an example.

## What data type is price in SQL?

The best type for price column should be **DECIMAL**. The type DECIMAL stores the value precisely. For Example – DECIMAL(10,2) can be used to store price value. It means the total digit will be 10 and two digits will be after decimal point.

## Which real number data type is the most accurate?

**Float and double**

**Double** is more precise than float and can store 64 bits, double of the number of bits float can store. Double is more precise and for storing large numbers, we prefer double over float.

## What does TinyInt 4 mean?

255 unsigned. M is the display width. M indicates the maximum display width for integer types. … So realistically TinyInt(3) unsigned is sufficient to display the max value of 255 . Whereas TinyInt(4) is need to **display -128 for instance**.

## What is varchar MySQL?

Varchar in MySQL is **a data type used for storing text whose length can have a maximum of 65535 characters**. The varchar columns in the table are of variable length string that can hold either numeric or character or both.