Column sizes   To download BLOB data with a data size greater than 1024 KB (the default), you need to set the ODBC DSN setting Default Buffer Size for Long Columns to be greater than the largest expected BLOB.

CHAR columns   In Adaptive Server Enterprise, CHAR data types are fixed length and blank-padded to the full length of the string. In MobiLink remote databases (SQL Anywhere or UltraLite), CHAR is the same as VARCHAR: values are not blank-padded to a fixed width. It is strongly recommended that you use VARCHAR in the consolidated database rather than CHAR. If you must use CHAR, the mlsrv11 -b command line option can be used to remove trailing blanks from strings during synchronization. This option is important for string comparisons used to detect conflicts.

For more information, see -b option.

Data type mapping   The data types of columns must map correctly between your consolidated and remote database. See Adaptive Server Enterprise data mapping.

Special considerations for version 11.5 and earlier   You cannot use MobiLink system procedures such as ml_add_connection_script to add scripts longer than 255 bytes to Adaptive Server Enterprise 11.5 or earlier. To define longer scripts, use Sybase Central or direct insertion.

Restrictions on VARBIT   MobiLink does not support synchronizing 0 length (empty) VARBIT or LONG VARBIT values to an Adaptive Server Enterprise consolidated database. Adaptive Server Enterprise does not support a VARBIT type so these types would normally be synchronized to a VARCHAR or TEXT column on the Adaptive Server Enterprise database. On Adaptive Server Enterprise, empty string values are converted into a single space. A space is not allowed in a VARBIT column on SQL Anywhere, so an attempt to download these values causes an error on the remote database.