Char varchar nvarchar sql

1. char - is the SQL-92 synonym for character. Data is padded with blanks/spaces to fill the field size. Fixed length data type.
2. nchar - is the SQL-92 synonym for national char and national character. Fixed length data type.
3. varchar - is the SQL-92 synonym for character varying. Variable length data type.
4. nvarchar - is the SQL-92 synonym for national char varying and national character varying. Variable length data type.

Similar codes

0 vote208 views1 answer
Normalization in database
SQL
1 vote180 views1 answer
Oracle sql create or replace view
SQL
4 votes195 views1 answer
Add constraint fk
SQL
0 vote158 views1 answer
Grant owner postgresql
SQL
0 vote223 views1 answer
SQL check if record exist
SQL
8 votes220 views1 answer
Oracle search text in all packages
SQL
10 votes201 views1 answer
User_dependencies
SQL
0 vote201 views2 answers
How to create a table from another table in sql derby
SQL
0 vote274 views1 answer
Sql insert exemplo
SQL
5 votes185 views1 answer
Postgres integer to serial
SQL