WebIn MySQL there are three main data types: string, numeric, and date and time. String Data Types Numeric Data Types Note: All the numeric data types may have an extra option: … WebMar 14, 2024 · mysql datatype for telephne number and address Any suggestions on best practice to store telephone numbers in a DB? Consider a US phone number: 555 555 …
How to restrict the length of INTEGER when creating a table in SQL ...
WebMar 14, 2013 · you give datatype as a number in table also and the time of inserting record in that table that time you must insert only numbers...then check it will work 3 solutions Top Rated Most Recent Solution 2 I would use a text based field for both the telephone number and the Zip / Postal code. WebAug 21, 2014 · Aug 21, 2014 at 9:22. Btw: For phone numbers, varchar indeed is probably the better choice. Btw: there is a way to restrict the length of an integer in SQL Server: use a check constraint: check (phone_number between 0 and 9999999999) – a_horse_with_no_name. Aug 21, 2014 at 9:24. grading out of 100
Datatype for phone number: VARCHAR, INT or BIGINT?
WebAs a numeric the allowable range that can be stored in that field is -10^38 +1 to 10^38 - 1. The first number in parentheses is the total number of digits that will be stored. Counting both sides of the decimal. In this case 18. So you could have a number with 18 digits before the decimal 18 digits after the decimal or some combination in between. WebNov 12, 2024 · ITU-T recommendation E.164 says you need 3 digits for the country code and up to 15 digits for the directory number within the country dialing plan.. And, many people add some punctuation. For example: +1.212.555.1212 is a North American number. It could also be rendered (212) 555-1212 in a North American centric app. WebFeb 27, 2009 · The n..char data types are for Unicode data, so if you're going to need to use unicode character sets in your data you should use those types as opposed to their "non-n" analogs. the nchar and char type are fixed length, and the nvarchar and varchar type can have a variable length, which will effect the size of the column on the disk and … grading out of 1000