Mapping SQL types to DBMS types

SQL type	DBMS type
`BIT`	`EDbColBit`
`TINYINT`	`EDbColInt8`
`UNSIGNED` `TINYINT`	`EDbColUint8`
`SMALLINT`	`EDbColInt16`
`UNSIGNED` `SMALLINT`	`EDbColUint16`
`INTEGER`	`EDbColInt32`
`UNSIGNED` `INTEGER`	`EDbColUint32`
`COUNTER`	`EDbColUint32`, with the `TDbCol::EAutoIncrement` attribute
`BIGINT`	`EDbColInt64`
`REAL`	`EDbColReal32`
`FLOAT`	`EDbColReal64`
`DOUBLE`	`EDbColReal64`
`DOUBLE PRECISION`	`EDbColReal64`
`DATE`	`EDbColDateTime`
`TIME`	`EDbColDateTime`
`TIMESTAMP`	`EDbColDateTime`
`CHAR`(`n`)	`EDbColText`, where `n` specifies a maximum column length
`VARCHAR`(`n`)	`EDbColText`, where `n` specifies a maximum column length
`LONG VARCHAR`	`EDbColLongText`
`BINARY`(`n`)	`EDbColBinary`, where `n` specifies a maximum column length
`VARBINARY`(`n`)	`EDbColBinary`, where `n` specifies a maximum column length
`LONG VARBINARY`	`EDbColLongBinary`
`DECIMAL`(`p`,`s`)	Not supported
`NUMERIC`(`p`,`s`)	Not supported