Home
View all relations in
information_schema
View all columns in
information_schema
Search for a relation or column
Report an issue or inaccuracy
View the source code and data on GitHub
information_schema.attributes.is_nullable
mysql
mariadb
tidb
postgres
type:
YES_OR_NO NULL
Note:
YES if the attribute is possibly nullable, NO if it is known not nullable.
© 1996-2022 The PostgreSQL Global Development Group
10-15
type:
CHARACTER_DATA
Note:
YES if the attribute is possibly nullable, NO if it is known not nullable.
© 1996-2022 The PostgreSQL Global Development Group
8.2-9.6
cockroachdb
mssql