As of CUBRID 3.1, there is no support for UNSIGNED numeric data types.

MySQL supports: http://dev.mysql.com/doc/refman/5.0/en/numeric-type-overview.html

PostgreSQL does not support.

Oracle does not support.

MS SQL does not support.

As of CUBRID 3.1 when a user specifies the column type as TIMESTAMP and adds the default value as TIMESTAMP, CUBRID sets to every new record the time fixed to the table creation time.

MySQL's default TIMESTAMP is the current INSERT time.

Oracle has same logic as in CUBRID.

As of CUBRID 8.4.0 there is no support for this syntax.

MySQL provides SHOW CREATE TABLE syntax (http://dev.mysql.com/doc/refman/5.0/en/show-create-table.html) which shows the CREATE TABLE statement that creates the given table.

www.phpactiverecord.org

As of CUBRID 8.4.0 there is no support for CASCADE or RESTRICT syntax in DROP TABLE IF EXISTS.

MySQL supports this http://dev.mysql.com/doc/refman/5.5/en/drop-table.html.

PostgreSQL allows to grant column-level permissions in the form of

GRANT SELECT (col1, ...coln) ON table TO role;

DELETE TOP or SELECT TOP syntaxes are a convenient way of implementing ORDER BY + LIMIT.

Supported in MSSQL http://msdn.microsoft.com/en-us/library/ms189463.aspx.

Can we have NoSql with transaction across tables in cubrid.

As of version 8.4.0 CUBRID cannot be correctly installed in a directory which has a space in its name.

MySQL allows to be installed in a folder with a space like C:\Program Files\MySQL.

As of CUBRID 3.1 there is no support for User Defined Data Types.

As of CUBRID 9.1 `IF NOT EXISTS` syntax is not supported when creating tables.

MySQL supports http://dev.mysql.com/doc/refman/5.1/en/create-table.html