phone number data type in sql

phone number data type in sql Using varchar is pretty inefficient use the money type and create a user declared type phonenumber out of it and create a rule to only allow positive numbers if you declare it as 19 4 you can even store a 4 digit extension and be big enough for international numbers and only takes 9 bytes of storage

Mysql datatype for telephone number and address Asked 14 years 4 months ago Modified 2 years 5 months ago Viewed 205k times 53 I want to input telephone number in a form including country code extension create table if not exists employee country code tel int 11 tel number int 10 extension int 10 To choose an appropriate data type for storing phone numbers we need to consider these factors 1 VARCHAR VARCHAR Variable Character is a commonly used data type that can store alphanumeric characters of variable length This data type can be suitable for phone numbers as it allows flexibility in terms of length and format For

phone number data type in sql

phone number data type in sql
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Phone number should be converted into E 164 before storage There is no phone number exist that can start with 0 in this format so if you remove starting sign that you can add after fetch from DB then you can store it as BIGINT The only downside of this it is harder to search by partially entered phone numbers then Use CHAR to Store Phone Numbers in MySQL The CHAR datatype short for character can store strings of fixed length between 0 and 255 characters A column implementing CHAR can specify an upper limit constraint between 0 and 255 and MySQL expects every string in that column to be of the same size

In SQL the phone number data type is used to store phone numbers in a database table It allows for the storage of telephone numbers in a specific format and provides validation to ensure data integrity Let s explore this data type in more detail Phone Number Data Type Database Star 48 7K subscribers Subscribed 261 13K views 1 year ago Database Design Phone numbers are a common field to store in a database However storing them as integers can cause

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Data type Description CHAR size A FIXED length string can contain letters numbers and special characters The size parameter specifies the column length in characters can be from 0 to 255 Default is 1 VARCHAR size A VARIABLE length string can contain letters numbers and special characters If the phone number is stored as a numeric value which it shouldn t be you can use the FORMAT function to format it as phone number Example SELECT FORMAT 0234567890 000 000 0000 Result 023 456 7890 The first argument is the phone number and the second argument is the format string

How do I store phone numbers in PostgreSQL Ask Question Asked 7 years 2 months ago Modified 1 year 6 months ago Viewed 28k times 19 Let s assume I want to store phone numbers in a database I may accept phone numbers from outside of the United States How would I go about storing these phone numbers postgresql Something like this PhoneNumber varchar 10 constraint CK MyTable PhoneNumber check PhoneNumber like 0 9 0 9 0 9 0 9 0 9 0 9 0 9 0 9 0 9 0 9 if it is always the same length you might want to use char instead Your check constraint only allows 10 numbers so you might as well use a char anyway

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phone number data type in sql - Typically this could be as big as a varchar 22 field which can store the formatted North American phone number with an extension in the form 999 555 1212 ext1234 This is the easiest way to store the number but also the least efficient I won t talk about the nvarchar 22 version which happens to be twice as big for no benefit