Convert SAP ASE Datatypes to SAP IQ

When transferring datatypes to SAP IQ, SAP ASE makes the necessary transformations to convert the data to the IQ format.

SAP ASE		SAP IQ
Datatype	Size (in bytes)	Datatype	Size (in bytes)
`bigint` `unsigned bigint`	8	`bigint unsigned bigint`	8
`int unsigned int`	4	`int unsigned int`	4
`smallint`	2	`smallint`	2
`unsigned smallint`	2	`int`	2
`tinyint`	1	`tinyint`	1
`numeric(P,S) decimal(P,S)`	2 – 17	`numeric(P,S) decimal(P,S)`	2 – 26
`double precision`	8	`double`	8
`real`	4	`real`	4
`float(P)`	4, 8	`float(P)`	4, 8
`money`	8	`money` IQ stores this as `numeric(19,4)`	16
`smallmoney`	4	`smallmoney` IQ stores this as `numeric(10,4)`	8
`bigdatetime datetime`	8	`datetime`	8
`smalldatetime`	4	`smalldatetime`	8
`date`	4	`date`	4
`time`	4	`time`	8
`bigtime`	8	`time`	8
`char(N)`	1 – 16296	`char(N)`	1 – 16296
`char(N) (null)`	1 – 16296	`char(N) (null)`	1 – 16296
`varchar(N) (null)`	1 – 16296	`varchar(N) (null)`	1 – 16296
`unichar(N)`	1– 8148	`binary(N*2)`	1 – 16296
`unichar(N) nullunivarchar(N) (null)`	1– 8148	`varbinary(N*2) (null)`	1 – 16296
`binary(N)`	1 – 16296	`binary(N)`	1 – 16296
`varbinary(N)`	1 – 16296	`varbinary(N)`	1 – 16296
`binary(N) nullvarbinary(N) (null)`	1 – 16296	`varbinary(N) (null)`	1 – 16296
`bit`	1	`bit`	1
`timestamp`	8	`varbinary(8) null`	8

Consider the following when converting SAP ASE datatypes to datatypes for IQ:

Define precision and scale the same on IQ and SAP ASE.
The storage size for float is 4 or 8 bytes, depending on precision. If you do not supply a value for precision, SAP ASE stores float as double precision, but IQ stores it as real. SAP ASE does not convert floating-point data to other formats for transfer to IQ. If you must use approximate numeric types, specify them as double or real, rather than as float.
The maximum length in SAP ASE for a column with datatypes char, unichar, or binary depends on your installation’s page size. The maximum size specified in the table is the largest possible column in a 16K page.
SAP ASE typically requires two bytes per character to store Unicode characters. Because IQ does not include the Unicode datatype, SAP ASE transmits unichar(N) to IQ as binary(N X 2). However, SAP ASE does not transform Unicode characters: SAP ASE pads Unicode strings with NULL(0x00) to transfer them to IQ.
IQ does not have a native Unicode datatype. SAP ASE transfers Unicode strings to IQ as binary data, that is, two bytes long for each Unicode character. For example, unichar(40) in SAP ASE converts to binary(80) in IQ. IQ cannot display the Unicode data as strings after the transfer.