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FairCom DB now supports use of parameters in case expressions and in calls to scalar functions. Parameters are supported in most instances, with the exception of a few cases where it is not possible to determine the type of a parameter. Exception cases where parameters are not supported:
Example
ISQL> create table test2 (name char(10), item_count integer, invoice_date DATE);
ISQL> insert into test2 values ('hammer', 50, now() );
1 record inserted.
ISQL> commit;
ISQL> select * from test2 where ADD_MONTHS(invoice_date, ?) > SYSDATE;
Enter value for:
Parameter: 1
Type: INTEGER
Maximum size: 10
Is null (Y/N): n
Value: 6
NAME ITEM_COUNT INVOICE_DATE
---- ---------- ------------
hammer 50 10/05/2020
1 record selected
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SQL - auto_increment fields enhanced
IDENTITY column support is now "smart" and automatically inserts values when explicitly specified and auto-generates values when they are not (the default existing behavior).
The syntax/definition of auto_increment fields in this release is identical to the current IDENTITY syntax except INSERT statements are smarter. When an INSERT statement specifies a value for an IDENTITY column, it inserts the specified value; when the value is omitted, it is generated automatically.
Prior to this modification, it was necessary to explicitly disable IDENTITY insertion with
SET identity_insert <table> on | off.
Only one table at a time can be set to identity_insert on.
No table definition changes are required to enable this new support. It enables compatibility with many external SQL frameworks such as SQLAlchemy.
