PowerDesigner中CDM和PDM資料型別的mapping

鴨脖發表於2013-04-10
Conceptual data type DBMS-specific physical data type Content Length
Integer int / INTEGER 32-bit integer  
Short Integer smallint / SMALLINT 16-bit integer  
Long Integer int / INTEGER 32-bit integer  
Byte tinyint / SMALLINT 256 values  
Number numeric / NUMBER Numbers with a fixed decimal point Fixed
Decimal decimal / NUMBER Numbers with a fixed decimal point Fixed
Float float / FLOAT 32-bit floating point numbers Fixed
Short Float real / FLOAT Less than 32-bit point decimal number  
Long Float double precision / BINARY DOUBLE 64-bit floating point numbers  
Money money / NUMBER Numbers with a fixed decimal point Fixed
Serial numeric / NUMBER Automatically incremented numbers Fixed
Boolean bit / SMALLINT Two opposing values (true/false; yes/no; 1/0)  
Characters char / CHAR Character strings Fixed
Variable Characters varchar / VARCHAR2 Character strings Maximum
Long Characters varchar / CLOB Character strings Maximum
Long Var Characters text / CLOB Character strings Maximum
Text text / CLOB Character strings Maximum
Multibyte nchar / NCHAR Multibyte character strings Fixed
Variable Multibyte nvarchar / NVARCHAR2 Multibyte character strings Maximum
Date date / DATE Day, month, year  
Time time / DATE Hour, minute, and second  
Date & Time datetime / DATE Date and time  
Timestamp timestamp / TIMESTAMP System date and time  
Binary binary / RAW Binary strings Maximum
Long Binary image / BLOB Binary strings Maximum
Bitmap image / BLOB Images in bitmap format (BMP) Maximum
Image image / BLOB Images Maximum
OLE image / BLOB OLE links Maximum
Other   User-defined data type  
Undefined undefined Not yet defined data type  

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