Firebird 2.1 Language Reference Update

Document History
DDL statements :: PROCEDURE :: CREATE PROCEDURE :: Domains
instead of datatypes: Renamed to Domains supported in parameter and
variable declarations. Added Warning about changing domain definitions.
DDL statements :: PROCEDURE :: CREATE PROCEDURE: Added subsection
NOT NULL in variable and parameter declarations.
DDL statements :: PROCEDURE :: ALTER PROCEDURE :: Domains instead
of datatypes: Renamed to Domains supported in parameter and
variable declarations.
DDL statements :: PROCEDURE :: ALTER PROCEDURE: Added subsection
NOT NULL in variable and parameter declarations.
DDL statements :: TABLE :: CREATE TABLE :: GENERATED ALWAYS
AS: Added Note about it not being supported in index definitions.
DDL statements :: TABLE :: CREATE TABLE: Added subsection FOR-
EIGN KEY without target column references PK.
DDL statements :: TABLE :: ALTER TABLE: Added subsection FOREIGN
KEY without target column references PK.
DDL statements :: TABLE :: ALTER TABLE: Added subsection GENER-
ATED ALWAYS AS.
DDL statements :: TRIGGER :: CREATE TRIGGER: Added subsection
NOT NULL in variable declarations.
DDL statements :: TRIGGER :: ALTER TRIGGER: Added subsection
NOT NULL in variable declarations.
DDL statements :: VIEW :: CREATE VIEW :: Full SELECT syntax supported:
Mentioned that in Fb 2.5 the column list becomes optional also
for union views.
DDL statements :: VIEW :: CREATE VIEW :: PLAN subclause disallowed
in 1.5: Changed title to PLAN subclause disallowed in 1.5, reallowed in
2.0.
DML statements :: DELETE: Corrected formal syntax (columns ->
values). Corrected syntax note about WHERE CURRENT OF.
DML statements :: DELETE: Added subsection COLLATE subclause for
text BLOB columns.
DML statements :: DELETE: Added subsection Relation alias makes real
name unavailable.
DML statements :: DELETE :: RETURNING: Improved Description.
DML statements :: EXECUTE BLOCK: Added NOT NULL support for in/
out/local PSQL vars (added “Changed in” formalpara, updated syntax
block, added subsection).
DML statements :: INSERT: Corrected formal syntax (column_list ->
value_list).
DML statements :: INSERT :: RETURNING: Improved Description.
DML statements :: MERGE: Mentioned CTE in description and created
links.
DML statements :: SELECT :: Common Table Expressions: Edited Description,
Syntax and Notes.
DML statements :: SELECT :: Table alias must be used if present: Renamed
to Relation alias makes real name unavailable and moved to before
ROWS subsection. Also changed Description and paragraph before
last example.
DML statements :: UPDATE: Corrected formal syntax (columns ->
values). Corrected syntax note about WHERE CURRENT OF.
205