public isNumeric () Check whether column have an numeric type

public getType () Column data type

public getTypeValues () Column data type values

public getSize () Integer column size

public getScale () Integer column number scale

public getName () Column’s name

public getTypeReference () Column data type reference

public hasDefault () Check whether column has default value

public getSchemaName () Schema which table related is

public string getAfterPosition () Check whether field absolute to position in table