The type of data that is made from the combination of letters and numbers of any language is called

Alphanumeric, also referred to as alphameric, is a term that encompasses all of the letters and numerals in a given language set. In layouts designed for English language users, alphanumeric characters are those comprised of the combined set of the 26 alphabetic characters, A to Z, and the 10 Arabic numerals, 0 to 9.

For some computer purposes, such as file naming, alphanumeric characters are strictly limited to the 26 alphabetic characters and 10 numerals. However, for other applications -- such as programming -- other keyboard symbols are sometimes permitted. In some usages, the alphanumeric character set may include both upper- and lower-case letters, punctuation marks and symbols -- such as @, &, and *. For languages other than English, alphanumeric characters include letter variations with accents, such as é and ç. 

The mishmash of letters and numerals used for texting abbreviations is sometimes referred to as alphanumerish. As is the case with the term alphanumeric, alphanumerish can be expanded to include other characters. The grawlix, for example, which represents a non-specific profanity, is generally made up of typographical symbols that do not include either letters or numerals, but it might be considered an alphanumerish word nevertheless.

This was last updated in December 2019

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The type of data that is made from the combination of letters and numbers of any language is called

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Alteryx processes values based on the data type. Alteryx supports string, numeric, date-time, and boolean data types, as well as, spatial objects.

You can use the Select tool, or any tool that includes select functionality, to modify the type of data in a column. For more information, go to Select Tool, Append Fields Tool, Join Tool, Join Multiple Tool, Find Nearest Tool, and Spatial Match Tool.

String Data

A string represents alphanumeric data and can include letters, numbers, spaces, or other types of characters. A string can also be thought of as plain text. All the characters in a string are processed as text even if the characters are digits.

While a string may contain text that looks like a number (for example, "123.4"), it must 1st be converted to a numeric data type (either with a Select tool or with the ToNumber Functions) to perform calculations.

It is more efficient to store strings as variable-length strings. This is because fixed-length strings reserve space for the specified number of characters, and variable-length strings use only the amount of storage needed for the data in that cell. Set a high limit for fixed-length strings to avoid truncating data.

TypeDescriptionExample
String Fixed Length Latin-1 String. The length should be at least as large as the longest string you want to be contained in the field, or values are truncated. Limited to 8192 Latin-1 characters. Any string whose length does not vary much from value to value, and only contains simple Latin-1 characters.
WString Wide String accepts any character (Unicode.) Limited to 8192 characters. Any string whose length does not vary much from value to value and contains any character.
V_String Variable Length. The length of the field adjusts to accommodate the entire string within the field. Any string whose length varies from value to value, and only contains simple Latin-1 characters.
V_WString Variable Length Wide String. The length of the field adjusts to accommodate the entire string within the field and will accept any character.

Any string whose length varies from value to value and contains any character.

Numeric Data

There are several different numeric data types including integers, decimals, floats, and doubles. With the exception of Fixed Decimal, numeric data types are not adjustable in length.

TypeDescriptionExample
Byte A unit of data that is 8 binary digits (bits) long. A byte field is a positive whole number that falls within the range 0 thru 255, or 28 0, 1, 2, 3....253, 254, 255
Int16

A numeric value without a decimal equal to 2 bytes, or -(215) to (215)-1

–32,768 to 32,767
Int32 A numeric value without a decimal equal to 4 bytes, or -(231) to (231)-1 –2,147,483,648 to 2,147,483,647
Int64 A numeric value without a decimal equal to 8 bytes, or -(263) to (263)-1 –9,223,372,036,854,775,808 to 9,223,372,036,854,775,807
Fixed Decimal

A numeric value with a decimal.

The length (precision) of a fixed decimal is equal to the width of the integer (left side of decimal) plus the decimal point plus the width of the scale (right side of decimal). If a number is negative, the negative sign is also included in the length.

Alteryx defaults a Fixed Decimal to 19.6. The maximum precision is 50, inclusive of the decimal point and negative sign (if applicable).

A Fixed Decimal is the only numeric data type with an adjustable length.

Be careful when using Fixed Decimal in Formula tool and when converting Fixed Decimal to Float or Double. In Formula, Fixed Decimal is implicitly converted into Double. The maximum precision for the Double data type is 15 digits and for Float 7 digits. If you are converting Fixed Decimal, you need to expect loosing all the data that couldn’t fit into the type you are converting to.

A value of 1234.567 with a length of 7.2 results in 1234.57

A value of 1234.567 with a length of 7.3 results in a field conversion error and Null output, as the value does not fit within the specified precision.

A value of 1234.567 with a length of 6.1 results in 1234.6

A value of 1234.567 with a length of 8.3 results in 1234.567

A value of -1234.567 with a length of 8.3 results in a field conversion error and Null output, as the value does not fit within the specified precision.

A value of 1234.567 with a length of 11.6 results in 1234.567000

A value of 12222222222222222222222222222222222.00000 when converted to Double results in 1.22222222222222e+34

A value of 1.983274187638715245 when converted to Double results in 1.98327418763872

Float

A standard single-precision floating-point value. It uses 4 bytes, and can represent values from +/- 3.4 x 10-38 to 3.4 x 1038 with 7 digits of precision.

A float uses a decimal that can be placed in any position and is mainly used to save memory in large arrays of floating-point numbers.

+/- 3.4 x 10-38 to 3.4 x 1038 with 7 digits precision
Double A standard double-precision floating-point value. It uses 8 bytes and can represent values from +/- 1.7 x 10-308 to 1.7 x 10308 with 15 digits precision.

A double uses a decimal that can be placed in any position. A double uses twice as many bits as a float and is generally used as the default data type for decimal values.

+/- 1.7 x 10-308 to 1.7 x 10308 with 15 digits

DateTime Data

TypeDescriptionExample
Date A 10 character String in "yyyy-mm-dd" format. December 2, 2005 = 2005-12-02
Time An 8 character String in "hh:mm:ss" format. 2:47 and 53 seconds a.m. = 02:47:53
2:47 and 53 seconds p.m. = 14:47:53
DateTime A 19 character String in "yyyy-mm-dd hh:mm:ss" format. 2005-12-02 14:47:53

Date, Time, and DateTime data types can be treated as strings when using functions in a tool with an expression editor. See the Date/Time Data table above for descriptions and examples.

Boolean Data

Spatial Objects

What data type is a combination of numbers and letters?

The CHAR data type stores any string of letters, numbers, and symbols. It can store single-byte and multibyte characters, based on the database locale. The CHARACTER data type is a synonym for CHAR.

What is the data which include alphabets combination of alphabets spaces and numbers called?

Alphanumeric, also referred to as alphameric, is a term that encompasses all of the letters and numerals in a given language set. In layouts designed for English language users, alphanumeric characters are those comprised of the combined set of the 26 alphabetic characters, A to Z, and the 10 Arabic numerals, 0 to 9.

What includes a combination of letters numbers and special characters?

Expert-verified answer These word shortenings are sometimes called alphanumeric acronyms, alphanumeric abbreviations, or numerical contractions.

What type of data type are letters or the alphabet?

2. Character. In coding, alphabet letters denote characters. Programmers might represent these data types as (CHAR) or (VARGCHAR), and they can be single characters or a string of letters.