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>GNADE User's Guide: GNADE, The GNat Ada Database Environment; Version 1.5.0; Document Revision $Revision: 1.42 $</TH
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>Appendix C. Porting legacy code</H1
><P
> This section describes the migration steps for migrating
from legacy code to GNADE embedded SQL. Because only a
limited number of ports have been performed this section
will evolve over the time.
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> The Oracle product seems to have a lot of extension compared
to ISO/92. Migrating from Oracle to GNADE using ODBC has to be
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> All host variables have to be moved into the DECLARE section
and the types of these variables has to be reworked as it is
required by ISO/92.
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> The default SQLCA with the name ORACLE does not exist. Due
to the fact, that the contents of the GNADE SQLCA is different
this code has to be reworked manually.
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><P
> The ESQL translator of Oracle supports non ISO/92 WHENEVER
clauses which are supported by the GNU ESQL translator as
well.
</P
><P
> Due to the fact, that ODBC requires different parameters
for the CONNECT clause this has to be reworked as well.
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