Question: What Is Long Datatype In SQL?

What is long data type in SQL?

The LONG datatype is like the VARCHAR2 datatype, except that the maximum size of a LONG value is 32760 bytes.

You use the LONG RAW datatype to store binary data or byte strings.

LONG RAW data is like LONG data, except that LONG RAW data is not interpreted by PL/SQL.

The maximum size of a LONG RAW value is 32760 bytes..

How many data types are there in SQL?

SQL data types can be broadly divided into following categories. Numeric data types such as int, tinyint, bigint, float, real etc. Date and Time data types such as Date, Time, Datetime etc. Character and String data types such as char, varchar, text etc.

What are the 2 types of data?

Understanding Qualitative, Quantitative, Attribute, Discrete, and Continuous Data TypesAt the highest level, two kinds of data exist: quantitative and qualitative.There are two types of quantitative data, which is also referred to as numeric data: continuous and discrete.More items…•

How do you use long int?

long intA long int typically uses twice as many bits as a regular int, allowing it to hold much larger numbers. … printf and scanf replace %d or %i with %ld or %li to indicate the use of a long int.long int may also be specified as just long.

What is data type for date in SQL?

Date and Time data typesData typeFormatStorage size (bytes)timehh:mm:ss[.nnnnnnn]3 to 5dateYYYY-MM-DD3smalldatetimeYYYY-MM-DD hh:mm:ss4datetimeYYYY-MM-DD hh:mm:ss[.nnn]82 more rows•Sep 1, 2017

What is data type float in SQL?

Float is Approximate-number data type, which means that not all values in the data type range can be represented exactly. … For the Decimal or Numeric data types, SQL Server considers each specific combination of precision and scale as a different data type. DECIMAL(2,2) and DECIMAL(2,4) are different data types.

Is year a datatype in SQL?

There is no “DataType” for Year as of 2012 in MSSQL. … You may consider INT as the Year() function in MSSQL does convert the data type “DATE” to an INT.

What is data type and types?

A data type is a type of data. … Some common data types include integers, floating point numbers, characters, strings, and arrays. They may also be more specific types, such as dates, timestamps, boolean values, and varchar (variable character) formats.

Is a varchar?

A varchar or Variable Character Field is a set of character data of indeterminate length. The term varchar refers to a data type of a field (or column) in a Database Management System which can hold letters and numbers.

What does good data look like?

There are five traits that you’ll find within data quality: accuracy, completeness, reliability, relevance, and timeliness – read on to learn more.

What are the 4 types of data?

4 Types of Data in Statistics – Nominal, Ordinal, Interval, Ratio.

What is float data type?

The FLOAT data type stores double-precision floating-point numbers with up to 17 significant digits. … The range of values for the FLOAT data type is the same as the range of the C double data type on your computer. You can use n to specify the precision of a FLOAT data type, but SQL ignores the precision.

What is primary key SQL?

The PRIMARY KEY constraint uniquely identifies each record in a table. Primary keys must contain UNIQUE values, and cannot contain NULL values. A table can have only ONE primary key; and in the table, this primary key can consist of single or multiple columns (fields).

What are the 5 types of data?

Common data types include:Integer.Floating-point number.Character.String.Boolean.

How do I use numeric datatype in SQL?

In SQL, numbers are defined as either exact or approximate. The exact numeric data types are SMALLINT , INTEGER , BIGINT , NUMERIC(p,s) , and DECIMAL(p,s) . Exact SQL numeric data type means that the value is stored as a literal representation of the number’s value.

What is the long data type?

Long is a data type used in programming languages, such as Java, C++, and C#. A constant or variable defined as long can store a single 64-bit signed integer. Because the long data type is signed, the possible integers range from -9,223,372,036,854,775,808 to 9,223,372,036,854,775,807, including 0. …

What is datatype in SQL?

A data type is an attribute that specifies the type of data that the object can hold: integer data, character data, monetary data, date and time data, binary strings, and so on. SQL Server supplies a set of system data types that define all the types of data that can be used with SQL Server.

Is money a datatype in SQL?

The MONEY datatype in SQL server is intrinsically less precise than the DECIMAL datatype in calculations. SELECT 23/7 returns 3, since SQL Server has done integer division. If SQL Server performs calculations on the MONEY datatype, intermediate values are stored internally as MONEY datatypes.

Which data type is implicitly declared in program?

Implicitly typed variables are those variables which are declared without specifying the . NET type explicitly. In implicitly typed variable, the type of the variable is automatically deduced at compile time by the compiler from the value used to initialize the variable.

What is varchar data type?

As the name suggests, varchar means character data that is varying. Also known as Variable Character, it is an indeterminate length string data type. It can hold numbers, letters and special characters. … SQL varchar usually holds 1 byte per character and 2 more bytes for the length information.

What are the types of commands in SQL?

Types of SQL CommandsDDL (Data Definition Language)DML (Data Manipulation Language)DQL (Data Query Language)DCL (Data Control Language)Data administration commands.Transactional control commands.