In mathematics, a tuple is a finite sequence or ordered list of numbers or, more generally, mathematical objects, which are called the elements of the tuple. An n-tuple is a tuple of n elements, where n is a non-negative integer. There is only one 0-tuple, called the empty tuple.
Tuple. Tuples are used to store multiple items in a single variable. Tuple is one of 4 built-in data types in Python used to store collections of data, the other 3 are List, Set, and Dictionary, all with different qualities and usage. A tuple is a collection which is ordered and unchangeable.
Let's take a look at some examples of Python tuples: () — an empty tuple. (1.0, 9.9, 10) — a tuple containing three numeric objects. ('Casey', 'Darin', 'Bella', 'Mehdi') — a tuple containing four string objects.
Typically, a tuple is an array with fixed size and known datatypes. This is to say; you'd use a tuple for a static, well-defined array: The number of elements of the array is fixed. The type of elements of the array need not be the same.
A tuple (pronounced tuh-pul) is a data structure in some programming languages that is an ordered list of elements. A tuple may include zero or more elements. To indicate how many elements it contains, it may be called an n-tuple, where "n" is the number of elements.
The primary difference between tuples and lists is that tuples are immutable as opposed to lists which are mutable. Therefore, it is possible to change a list but not a tuple. The contents of a tuple cannot change once they have been created in Python due to the immutability of tuples.
A tuple, also known as a record or row, is a basic unit of data in a relational database management system (DBMS). A tuple represents a single instance of a relation, or table, in the database. Each tuple contains a set of values, or attributes, that correspond to the columns, or fields, of the relation.
A row, or record, is also known as a tuple. The columns in a table is a field and is also referred to as an attribute. You can also think of it this way: an attribute is used to define the record and a record contains a set of attributes.
A table row contained in a table in the tablespace is known as a tuple. Typically, a table has rows and columns, where the rows represent records, and the columns represent attributes. A tuple is a single row in a database that contains a single record for such a relation.
Classes are intended to represent a single value with several attributes. Tuple is a great option when you want to combine multiple values (can be different types) into one object without creating a custom class. In this case, Tuple would be a fast and a perfect option to go with.
Tuples have a fixed length, while lists have variable lengths. Thus, the size of created lists can be changed, but that is not the case for tuples.
Creating a Tuple
A tuple is created by placing all the items (elements) inside parentheses () , separated by commas. The parentheses are optional, however, it is a good practice to use them. A tuple can have any number of items and they may be of different types (integer, float, list, string, etc.).
A tuple is a collection of objects which ordered and immutable. Tuples are sequences, just like lists. The differences between tuples and lists are, the tuples cannot be changed unlike lists and tuples use parentheses, whereas lists use square brackets.
Tuples are more memory efficient than the lists. When it comes to the time efficiency, tuples have a slight advantage over the lists especially when we consider lookup value. If you have data that shouldn't change, you should choose tuple data type over lists.
Lists are a useful tool for preserving a sequence of data and further iterating over it. While, a Tuple is an immutable collection of Python objects separated by commas i.e a tuple can't be changed or modified after its creation.
Tuples can be created using parenthesis () and data is inserted using comas. This means they refer to the same object and string does the same thing. But tuples comes into play when few data need to stay together. For example: file name, it's size and type.
Etymology. The term originated as an abstraction of the sequence: single, couple/double, triple, quadruple, quintuple, sextuple, septuple, octuple, ..., n‑tuple, ..., where the prefixes are taken from the Latin names of the numerals. The unique 0-tuple is called the null tuple or empty tuple.
In the context of a database, a tuple can refer to a column of a table. A table is a collection of data organized into rows and columns. Each column represents a specific type of data, such as a person's name or age. A tuple in this context would refer to a single column of data within a table.
For strings, lists and dictionaries, there are set of methods you can use to manipulate the objects. Because tuples are immutable, there are no methods to modify the objects.
Tuple: Tuple looks similar to list. The only difference is that comma separated items of same or different type are enclosed in parentheses. Individual items follow zero based index, as in list or string.
Records are similar to tuples, in that they group together various data elements. A record has fields, and these are named. While tuples are an ordered collection of data values, a tuple is an unordered collection of labeled data values.
In C#, a 3-tuple is a tuple that contains three elements and it is also known as triple.
Advantages of Tuple
We can search any element in a tuple. Tuples are faster than lists, because they have a constant set of values. Tuples can be used as dictionary keys, because they contain immutable values like strings, numbers, etc.
The list is dynamic, whereas the tuple has static characteristics. This means that lists can be modified whereas tuples cannot be modified, the tuple is faster than the list because of static in nature.