What are common data types in SQL quizlet?

What are common data types in SQL?

Categories of SQL Server data types

  • Exact numeric: bit, tinyint, smallint, int, bigint, decimal, numeric, money and smallmoney.
  • Approximate numeric: Read and float.
  • Date and time: date, DateTime, datetime2, datetimeoffset, smalldatetime, time.
  • Character strings:char, varchar, text.

What common data type you would be used to count objects?

What common data type you would be used to count objects? 3. What common data type is used to store decimal numbers such as 3.14 and 7.07? Explanation: A float numeric data type is commonly used in the scientific community and is considered an approximate-number data type.

How many data types are there in SQL?

In MySQL there are three main data types: string, numeric, and date and time.

How many bytes does a single character take up if it is a varchar that supports English and most European languages?

Explanation: A regular character uses 1 byte of storage for each character, which allows you to define one of 256 (8 bits are in a byte and 2^8=256) possible characters that accommodate English and some European languages.

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What are the 5 data types?

Common data types include:

  • Integer.
  • Floating-point number.
  • Character.
  • String.
  • Boolean.

What is data type in database?

A database data type refers to the format of data storage that can hold a distinct type or range of values. When computer programs store data in variables, each variable must be designated a distinct data type. Some common data types are as follows: integers, characters, strings, floating point numbers and arrays.

How do you identify data type?

But, in Java there are also several ‘primitive’ data types:

  1. char – a single 16-bit Unicode character, such as a letter, decimal or punctuation symbol.
  2. boolean – can have only two possible values: true (1) or false (0). …
  3. byte – has a minimum value of -128 and a maximum value of 127 (inclusive).

What are the different types of data types?

What are Data Types and Why are They Important?

  • Integer (int)
  • Floating Point (float)
  • Character (char)
  • String (str or text)
  • Boolean (bool)
  • Enumerated type (enum)
  • Array.
  • Date.

What are the 4 types of database?

There are various types of databases used for storing different varieties of data:

  • 1) Centralized Database. …
  • 2) Distributed Database. …
  • 3) Relational Database. …
  • 4) NoSQL Database. …
  • 5) Cloud Database. …
  • 6) Object-oriented Databases. …
  • 7) Hierarchical Databases. …
  • 8) Network Databases.

What are SQL types?

Types of SQL Statements

  • Data Definition Language (DDL) Statements.
  • Data Manipulation Language (DML) Statements.
  • Transaction Control Statements.
  • Session Control Statements.
  • System Control Statement.
  • Embedded SQL Statements.

What is data type for date in SQL?

Date and Time data types

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Data type Format Storage size (bytes)
date YYYY-MM-DD 3
smalldatetime YYYY-MM-DD hh:mm:ss 4
datetime YYYY-MM-DD hh:mm:ss[.nnn] 8
datetime2 YYYY-MM-DD hh:mm:ss[.nnnnnnn] 6 to 8
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