meta data for this page
  •  

InterBase 6.0 DSQL syntax

YACC grammar notation

List of possible statements

top : statement.
| statement ';'
;
statement : alter
| blob
| commit
| create
| declare
| delete
| drop
| grant
| insert
| invoke_procedure
| revoke
| rollback
| select
| set
| update
;

GRANT statement

grant : GRANT privileges ON prot_table_name TO user_grantee_list grant_option
| GRANT proc_privileges ON PROCEDURE simple_proc_name TO user_grantee_list grant_option
| GRANT privileges ON prot_table_name TO grantee_list
| GRANT proc_privileges ON PROCEDURE simple_proc_name TO grantee_list
| GRANT role_name_list TO role_grantee_list role_admin_option
;
prot_table_name : simple_table_name
| TABLE simple_table_name
;
privileges : ALL
| ALL PRIVILEGES
| privilege_list
;
privilege_list : privilege
| privilege_list ',' privilege
;
proc_privileges : EXECUTE
;
privilege : SELECT
| INSERT
| DELETE
| UPDATE column_parens_opt
| REFERENCES column_parens_opt
;
grant_option : WITH GRANT OPTION
| /* empty */
;
role_admin_option : WITH ADMIN OPTION
| /* empty */
;
simple_proc_name : symbol_procedure_name
;

REVOKE statement

revoke : REVOKE rev_grant_option privileges ON prot_table_name FROM user_grantee_list
| REVOKE rev_grant_option proc_privileges ON PROCEDURE simple_proc_name FROM user_grantee_list
| REVOKE privileges ON prot_table_name FROM user_grantee_list
| REVOKE proc_privileges ON PROCEDURE simple_proc_name FROM user_grantee_list
| REVOKE privileges ON prot_table_name FROM grantee_list
| REVOKE proc_privileges ON PROCEDURE simple_proc_name FROM grantee_list
| REVOKE role_name_list FROM role_grantee_list
;
rev_grant_option : GRANT OPTION FOR
grantee_list : grantee
| grantee_list ',' grantee
| grantee_list ',' user_grantee
| user_grantee_list ',' grantee
;
grantee : PROCEDURE symbol_procedure_name
| TRIGGER symbol_trigger_name
| VIEW symbol_view_name
;
user_grantee_list : user_grantee
| user_grantee_list ',' user_grantee
;
user_grantee : symbol_user_name
| USER symbol_user_name
| GROUP symbol_user_name
;
role_name_list : role_name
| role_name_list ',' role_name
;
role_name : symbol_role_name
;
role_grantee_list]] : role_grantee
| role_grantee_list ',' role_grantee
;
role_grantee : symbol_user_name
| USER symbol_user_name
;

DECLARE operations

declare : DECLARE declare_clause
;
declare_clause : FILTER filter_decl_clause
| EXTERNAL FUNCTION udf_decl_clause
;
udf_decl_clause : symbol_UDF_name arg_desc_list1 RETURNS return_value1 ENTRY_POINT sql_string
MODULE_NAME sql_string
;
udf_data_type : simple_type
| BLOB
| CSTRING '(' pos_short_integer ')' charset_clause
;
arg_desc_list1 : /* empty */
| arg_desc_list
| '(' arg_desc_list ')'
;
arg_desc_list : arg_desc
| arg_desc_list ',' arg_desc
;
arg_desc : init_data_type udf_data_type
;
return_value1 : return_value
| '(' return_value ')'
;
return_value : init_data_type udf_data_type
| init_data_type udf_data_type FREE_IT
| init_data_type udf_data_type BY VALUE
| PARAMETER pos_short_integer
;
filter_decl_clause : symbol_filter_name INPUT_TYPE blob_subtype OUTPUT_TYPE blob_subtype
ENTRY_POINT sql_string MODULE_NAME sql_string
;

CREATE metadata operations

create : CREATE create_clause
;
create_clause : EXCEPTION symbol_exception_name sql_string
| unique_opt order_direction INDEX symbol_index_name ON simple_table_name index_definition
| PROCEDURE procedure_clause
| TABLE table_clause
| TRIGGER def_trigger_clause
| VIEW view_clause
| GENERATOR generator_clause
| DATABASE db_clause
| DOMAIN domain_clause
| SHADOW shadow_clause
| ROLE role_clause
;

CREATE INDEX

unique_opt : UNIQUE
| /* empty */
;
index_definition : column_list
| column_parens
;

CREATE SHADOW

shadow_clause : pos_short_integer manual_auto conditiona sql_string first_file_length sec_shadow_files
;
manual_auto : MANUAL
| AUTO
| /* empty */
;
conditional : /* empty */
| CONDITIONAL
;
first_file_length : /* empty */
| LENGTH equals long_integer page_noise
;
sec_shadow_files : /* empty */
| db_file_list
;
db_file_list : db_file
| db_file_list db_file
;

CREATE DOMAIN

domain_clause : column_def_name as_opt data_type begin_trigger domain_default_opt end_trigger domain_constraint_clause collate_clause
;
as_opt : AS
| /* empty */
;
domain_default_opt : DEFAULT begin_trigger default_value
| /* empty */
;
domain_constraint_clause : /* empty */
| domain_constraint_list
;
domain_constraint_list : domain_constraint_def
| domain_constraint_list domain_constraint_def
;
domain_constraint_def : domain_constraint
;
domain_constraint : null_constraint
| domain_check_constraint
;
null_constraint : NOT NULL
;
domain_check_constraint : begin_trigger CHECK '(' search_condition ')' end_trigger
;

CREATE GENERATOR

generator_clause : symbol_generator_name
;

CREATE ROLE

role_clause : symbol_role_name

CREATE DATABASE

db_clause : db_name db_initial_desc1 db_rem_desc1
;
equals : /* empty */
| '='
;
db_name : sql_string
;
db_initial_desc1 : /* empty */
| db_initial_desc
;
db_initial_desc : db_initial_option
| db_initial_desc db_initial_option
;
db_initial_option : PAGE_SIZE equals pos_short_integer
| LENGTH equals long_integer page_noise
| USER sql_string
| PASSWORD sql_string
| SET NAMES sql_string
;
db_rem_desc1 : /* empty */
| db_rem_desc
;
db_rem_desc : db_rem_option
| db_rem_desc db_rem_option
;
db_rem_option : db_file
| db_log
| db_log_option
| DEFAULT CHARACTER SET symbol_character_set_name
;
db_log_option : GROUP_COMMIT_WAIT equals long_integer
| CHECK_POINT_LEN equals long_integer
| NUM_LOG_BUFS equals pos_short_integer
| LOG_BUF_SIZE equals unsigned_short_integer
;
db_log : db_default_log_spec
| db_rem_log_spec
;
db_rem_log_spec : LOGFILE '(' logfiles ')' OVERFLOW logfile_desc
| LOGFILE BASENAME logfile_desc
;
db_default_log_spec : LOGFILE
;
db_file : file1 sql_string file_desc1
;
logfiles : logfile_desc
| logfiles ',' logfile_desc
;
logfile_desc : logfile_name logfile_attrs
;
logfile_name : sql_string
;
logfile_attrs : /* empty */
| logfile_attrs logfile_attr
;
logfile_attr : SIZE equals long_integer
;
file1 : FILE
;
file_desc1 : /* empty */
| file_desc
;
file_desc : file_clause
| file_desc file_clause
;
file_clause : STARTING file_clause_noise long_integer
| LENGTH equals long_integer page_noise
;
file_clause_noise : /* empty */
| AT
| AT PAGE
;
page_noise : /* empty */
| PAGE
| PAGES
;

CREATE TABLE

table_clause : simple_table_name external_file '(' table_elements ')'
;
external_file : EXTERNAL FILE sql_string
| EXTERNAL sql_string
| /* empty */
;
table_elements : table_element
| table_elements ',' table_element
;
table_element : column_def
| table_constraint_definition
;

Column definition

column_def : column_def_name data_type_or_domain default_opt end_trigger column_constraint_clause collate_clause
| column_def_name non_array_type def_computed
| column_def_name def_computed
;
def_computed : computed_by '(' begin_trigger value end_trigger ')'
;
computed_by : COMPUTED BY
| COMPUTED
;
data_type_or_domain : data_type begin_trigger
| simple_column_name begin_string
;
collate_clause : COLLATE symbol_collation_name
| /* empty */
;
column_def_name : column_name
;
simple_column_def_name : simple_column_name
;
data_type_descriptor : init_data_type data_type
init_data_type : /* empty */
default_opt : DEFAULT default_value
| /* empty */
;
default_value : constant
| USER
| null_value
| datetime_value_expression
;
column_constraint_clause : /* empty */
| column_constraint_list
;
column_constraint_list : column_constraint_def
| column_constraint_list column_constraint_def
;
column_constraint_def : constraint_name_opt column_constraint
column_constraint : NOT NULL
| REFERENCES simple_table_name column_parens_opt referential_trigger_action
| check_constraint
| UNIQUE
| PRIMARY KEY
;

Table constraints

table_constraint_definition : constraint_name_opt table_constraint
;
constraint_name_opt : CONSTRAINT symbol_constraint_name
;
table_constraint : unique_constraint
| primary_constraint
| referential_constraint
| check_constraint
;
unique_constraint : UNIQUE column_parens
;
primary_constraint : PRIMARY KEY column_parens
;
referential_constraint : FOREIGN KEY column_parens REFERENCES simple_table_name column_parens_opt referential_trigger_action
;
check_constraint : begin_trigger CHECK '(' search_condition ')' end_trigger
;
referential_trigger_action : /* empty */ update_rule
| delete_rule
| delete_rule update_rule
| update_rule delete_rule
;
update_rule : ON UPDATE referential_action
;
delete_rule : ON DELETE referential_action
;
referential_action : CASCADE
| SET DEFAULT
| SET NULL
| NO ACTION
;

PROCEDURE

procedure_clause : symbol_procedure_name input_parameters output_parameters AS begin_string var_declaration_list full_proc_block end_trigger
;
alter_procedure_clause : symbol_procedure_name input_parameters output_parameters AS begin_string var_declaration_list full_proc_block end_trigger
;
input_parameters : '(' proc_parameters ')'
| /* empty */
;
output_parameters : RETURNS input_parameters
| /* empty */
;
proc_parameters : proc_parameter
| proc_parameters ',' proc_parameter
;
proc_parameter : simple_column_def_name non_array_type
;
var_declaration_list : var_declarations
| /* empty */
;
var_declarations : var_declaration
| var_declarations var_declaration
;
var_declaration : DECLARE VARIABLE column_def_name non_array_type ';'
;
proc_block : proc_statement
| full_proc_block
;
full_proc_block : BEGIN proc_statements END
| BEGIN proc_statements excp_statements END
;
proc_statements : proc_block
| proc_statements proc_block
;
proc_statement : assignment ';'
| delete ';'
| EXCEPTION symbol_exception_name ';'
| exec_procedure
| for_select
| if_then_else
| insert ';'
| POST_EVENT value ';'
| singleton_select
| update ';'
| while
| SUSPEND ';'
| EXIT ';'
;
exec_procedure : EXECUTE PROCEDURE symbol_procedure_name proc_inputs proc_outputs ';'
;
|for_select : FOR select INTO variable_list cursor_def DO proc_block
;
if_then_else : IF '(' search_condition ')' THEN proc_block ELSE proc_block
|IF '(' search_condition ')' THEN proc_block
;
singleton_select : select INTO variable_list ';'
;
variable : ':' symbol_variable_name
;
proc_inputs : var_const_list
| '(' var_const_list ')'
| /* empty */
;
proc_outputs : RETURNING_VALUES variable_list
| RETURNING_VALUES '(' variable_list ')'
| /* empty */
;
var_const_list : variable
| constant
| column_name
| null_value
| var_const_list ',' variable
| var_const_list ',' constant
| var_const_list ',' column_name
| var_const_list ',' null_value
;
variable_list : variable
| column_name
| variable_list ',' column_name
| variable_list ',' variable
;
while : WHILE '(' search_condition ')' DO proc_block
;
cursor_def : AS CURSOR symbol_cursor_name
| /* empty */
;
excp_statements : excp_statement
| excp_statements excp_statement
;
excp_statement : WHEN errors DO proc_block
;
errors : err
| error ',' err
;
err : SQLCODE signed_short_integer
| GDSCODE symbol_gdscode_name
| EXCEPTION symbol_exception_name
| ANY
;

Direct EXECUTE PROCEDURE

invoke_procedure : EXECUTE PROCEDURE symbol_procedure_name prc_inputs
;
prc_inputs : prm_const_list
| '(' prm_const_list ')'
| /* empty */
;
prm_const_list : parameter
| constant
| null_value
| prm_const_list ',' parameter
| prm_const_list ',' constant
| prm_const_list ',' null_value
;

CREATE VIEW

view_clause : symbol_view_name column_parens_opt AS begin_string select_view check_opt end_string
;
select_view : select_view_expr
;
select_view_expr : SELECT distinct_clause select_list from_view_clause where_clause group_clause having_clause plan_clause
;
from_view_clause : FROM from_view_list
;
from_view_list : view_table
| from_view_list ',' view_table
;
view_table : joined_view_table
| table_name
;
joined_view_table : view_table join_type JOIN view_table ON search_condition
| '(' joined_view_table ')'
;

These rules will capture the input string for storage in metadata

begin_string : /* empty */
;
end_string : /* empty */
;
begin_trigger : /* empty */
;
end_trigger : /* empty */
;
check_opt : WITH CHECK OPTION
| /* empty */
;

CREATE TRIGGER

def_trigger_clause : symbol_trigger_name FOR simple_table_name trigger_active trigger_type trigger_position begin_trigger trigger_action end_trigger
;
trigger_active : ACTIVE
| INACTIVE
| /* empty */
;
trigger_type : BEFORE INSERT
| AFTER INSERT
| BEFORE UPDATE
| AFTER UPDATE
| BEFORE DELETE
| AFTER DELETE
;
trigger_position : POSITION nonneg_short_integer
| /* empty */
;
trigger_action : AS begin_trigger var_declaration_list full_proc_block
;

ALTER statement

alter : ALTER alter_clause
;
alter_clause : EXCEPTION symbol_exception_name sql_string
| TABLE simple_table_name alter_ops
| TRIGGER alter_trigger_clause
| PROCEDURE alter_procedure_clause
| DATABASE init_alter_db alter_db
| DOMAIN simple_column_name alter_domain_ops
| INDEX alter_index_clause
;
alter_domain_ops : alter_domain_op
| alter_domain_ops alter_domain_op
;
alter_domain_op : SET begin_string default_opt end_trigger
| ADD CONSTRAINT domain_check_constraint
| ADD domain_check_constraint
| DROP DEFAULT
| DROP CONSTRAINT
| TO simple_column_name
| TYPE init_data_type non_array_type
;
alter_ops : alter_op
| alter_ops ',' alter_op
;
alter_op : DROP simple_column_name drop_behaviour
| DROP CONSTRAINT symbol_constraint_name
| ADD column_def
| ADD table_constraint_definition
| col_opt simple_column_name POSITION nonneg_short_integer
| col_opt simple_column_name TO simple_column_name
| col_opt alter_col_name TYPE alter_data_type_or_domain end_trigger
;
col_opt : ALTER
| ALTER COLUMN
;
alter_data_type_or_domain : non_array_type begin_trigger
| simple_column_name begin_string
alter_col_name : simple_column_name
drop_behaviour : RESTRICT
| CASCADE
| /* empty */
;
alter_index_clause : symbol_index_name ACTIVE
| symbol_index_name INACTIVE
;

ALTER DATABASE

init_alter_db : /* empty */
;
alter_db : db_alter_clause
| alter_db db_alter_clause
;
db_alter_clause : ADD db_file_list
| DROP LOGFILE
| SET db_log_option_list
| ADD db_log
;
db_log_option_list : db_log_option
| db_log_option_list ',' db_log_option
;

ALTER TRIGGER

alter_trigger_clause : symbol_trigger_name trigger_active new_trigger_type trigger_position begin_trigger new_trigger_action end_trigger
;
new_trigger_type : trigger_type
| /* empty */
;
new_trigger_action : trigger_action
| /* empty */
;

DROP metadata operations

drop : DROP drop_clause
;
drop_clause : EXCEPTION symbol_exception_name
| INDEX symbol_index_name
| PROCEDURE symbol_procedure_name
| TABLE symbol_table_name
| TRIGGER symbol_trigger_name
| VIEW symbol_view_name
| FILTER symbol_filter_name
| DOMAIN symbol_domain_name
| EXTERNAL FUNCTION symbol_UDF_name
| SHADOW pos_short_integer
| ROLE symbol_role_name
;

These are the allowable datatypes

data_type : non_array_type
| array_type
;
non_array_type : simple_type
| blob_type
;
array_type : non_charset_simple_type '[' array_spec ']'
| character_type '[' array_spec ']' charset_clause
;
array_spec : array_range
| array_spec ',' array_range
;
array_range : signed_long_integer
| signed_long_integer ':' signed_long_integer
;
simple_type : non_charset_simple_type
| character_type charset_clause
;
non_charset_simple_type : national_character_type
| numeric_type
| float_type
| integer_keyword
| SMALLINT
| DATE
| SQL DATE
| TIME
| TIMESTAMP
;
integer_keyword : INTEGER
| INT
;
blob_type : BLOB blob_subtype blob_segsize charset_clause
| BLOB '(' unsigned_short_integer ')'
| BLOB '(' unsigned_short_integer ',' signed_short_integer ')'
| BLOB '(' ',' signed_short_integer ')'
;
blob_segsize : SEGMENT SIZE unsigned_short_integer
| /* empty */
;
blob_subtype : SUB_TYPE signed_short_integer
| SUB_TYPE symbol_blob_subtype_name
| /* empty */
;
charset_clause : CHARACTER SET symbol_character_set_name
| /* empty */]]
;

Character type

national_character_type : national_character_keyword '(' pos_short_integer ')'
| national_character_keyword
| national_character_keyword VARYING '(' pos_short_integer ')'
;
character_type : character_keyword '(' pos_short_integer ')'
| character_keyword
| varying_keyword '(' pos_short_integer ')'
;
varying_keyword : VARCHAR
| CHARACTER VARYING
| CHAR VARYING
;
character_keyword : CHARACTER
| CHAR
;
national_character_keyword : NCHAR
| NATIONAL CHARACTER
| NATIONAL CHAR
;

Numeric type

numeric_type : NUMERIC prec_scale
| decimal_keyword prec_scale
;
ordinal : pos_short_integer
;
prec_scale : /* empty */
| '(' signed_long_integer ')'
| '(' signed_long_integer ',' signed_long_integer ')'
;
decimal_keyword : DECIMAL
| DEC
;

Floating point type

float_type : FLOAT precision_opt
| LONG FLOAT precision_opt
| REAL
| DOUBLE PRECISION
;
precision_opt : '(' nonneg_short_integer ')'
| /* empty */
;

SET statements

set : set_transaction
| set_generator
| set_statistics
;
set_generator : SET GENERATOR symbol_generator_name TO signed_long_integer
| SET GENERATOR symbol_generator_name TO NUMBER64BIT
| SET GENERATOR symbol_generator_name TO '-' NUMBER64BIT
;

Transaction statements

commit : COMMIT optional_work optional_retain
;
rollback : ROLLBACK optional_work
;
optional_work : WORK
| /* empty */
;
optional_retain : RETAIN opt_snapshot
| /* empty */
;
opt_snapshot : SNAPSHOT
| /* empty */
;
set_transaction : SET TRANSACTION tran_opt_list_m
;
tran_opt_list_m : tran_opt_list
| /* empty */
;
tran_opt_list : tran_opt
| tran_opt_list tran_opt
;
tran_opt : access_mode
| lock_wait
| isolation_mode
| tbl_reserve_options
;
access_mode : READ ONLY
| READ WRITE
;
lock_wait : WAIT
| NO WAIT
;
isolation_mode : ISOLATION LEVEL iso_mode
| iso_mode
;
iso_mode : snap_shot
| READ UNCOMMITTED version_mode
| READ COMMITTED version_mode
;
snap_shot : SNAPSHOT
| SNAPSHOT TABLE
| SNAPSHOT TABLE STABILITY
;
version_mode : VERSION
| NO VERSION
| /* empty */
;
tbl_reserve_options : RESERVING restr_list
;
lock_type : SHARED
| PROTECTED
| /* empty */
;
lock_mode : READ
| WRITE
;
restr_list : restr_option
| restr_list ',' restr_option
;
restr_option : table_list table_lock
;
table_lock : FOR lock_type lock_mode
| /* empty */
;
table_list : simple_table_name
| table_list ',' simple_table_name
;
set_statistics : SET STATISTICS INDEX symbol_index_name

SELECT statement

select : union_expr order_clause for_update_clause
;
union_expr : select_expr
| union_expr UNION select_expr
| union_expr UNION ALL select_expr
;
order_clause : ORDER BY order_list
| /* empty */
;
order_list : order_item
| order_list ',' order_item
;
order_item : column_name collate_clause order_direction
| ordinal collate_clause order_direction
;
order_direction : ASC
| DESC
| /* empty */
;
for_update_clause : FOR UPDATE for_update_list
| /* empty */
;
for_update_list : OF column_list
| /* empty */
;

SELECT expression

select_expr : SELECT distinct_clause select_list from_clause where_clause group_clause having_clause plan_clause
;
distinct_clause : DISTINCT
| all_noise
;
select_list : select_items
| '*'
;
select_items : select_item
| select_items ',' select_item
;
select_item : rhs
| rhs symbol_item_alias_name
| rhs AS symbol_item_alias_name
;

FROM clause

from_clause : FROM from_list
;
from_list : table_reference
| from_list ',' table_reference
;
table_reference : joined_table
| table_proc
;
joined_table : table_reference join_type JOIN table_reference ON search_condition
| '(' joined_table ')'
;
table_proc : symbol_procedure_name proc_table_inputs symbol_table_alias_name
| symbol_procedure_name proc_table_inputs
;
proc_table_inputs : '(' null_or_value_list ')'
| /* empty */
;
null_or_value_list : null_or_value
| null_or_value_list ',' null_or_value
;
null_or_value : null_value
| value
;
table_name : simple_table_name
| symbol_table_name symbol_table_alias_name
;
simple_table_name : symbol_table_name
;
join_type : INNER
| LEFT
| LEFT OUTER
| RIGHT
| RIGHT OUTER
| FULL
| FULL OUTER
| /* empty */
;

Other clauses in the SELECT expression

group_clause : GROUP BY grp_column_list
| /* empty */
;
grp_column_list : grp_column_elem
| grp_column_list ',' grp_column_elem
;
grp_column_elem : column_name
| column_name COLLATE symbol_collation_name
;
having_clause : HAVING search_condition
| /* empty */
;
where_clause : WHERE search_condition
| /* empty */
;

PLAN clause to specify an access plan for a query

plan_clause : PLAN plan_expression
| /* empty */
;
plan_expression : plan_type '(' plan_item_list ')'
;
plan_type : JOIN
| SORT MERGE
| MERGE
| SORT
| /* empty */
;
plan_item_list : plan_item
| plan_item ',' plan_item_list
;
plan_item : table_or_alias_list access_type
| plan_expression
;
table_or_alias_list : symbol_table_name
| symbol_table_name table_or_alias_list
;
access_type : NATURAL
| INDEX '(' index_list ')'
| ORDER symbol_index_name
;
index_list : symbol_index_name
| symbol_index_name ',' index_list
;

INSERT statement

insert : INSERT INTO simple_table_name column_parens_opt VALUES '(' insert_value_list ')'
| INSERT INTO simple_table_name column_parens_opt select_expr
;
insert_value_list : rhs
| insert_value_list ',' rhs
;

DELETE statement

delete : delete_searched
| delete_positioned
;
delete_searched : DELETE FROM table_name where_clause
;
delete_positioned : DELETE FROM table_name cursor_clause
;
cursor_clause : WHERE CURRENT OF symbol_cursor_name
;

UPDATE statement

update : update_searched
| update_positioned
;
update_searched : UPDATE table_name SET assignments where_clause
;
update_positioned : UPDATE table_name SET assignments cursor_clause
;
assignments : assignment
| assignments ',' assignment
;
assignment : column_name '=' rhs
;
rhs : value
| null_value
;

BLOB get and put

blob : READ BLOB simple_column_name FROM simple_table_name filter_clause segment_clause
| INSERT BLOB simple_column_name INTO simple_table_name filter_clause segment_clause
;
filter_clause : FILTER FROM blob_subtype_value TO blob_subtype_value
| FILTER TO blob_subtype_value
| /* empty */
;
blob_subtype_value : blob_subtype
| parameter
;
blob_subtype : signed_short_integer
;
segment_clause : MAX_SEGMENT segment_length
| /* empty */
;
segment_length : unsigned_short_integer
| parameter
;

Column specifications

column_parens_opt : column_parens
| /* empty */
;
column_parens : '(' column_list ')'
;
column_list : column_name
| column_list ',' column_name
;
column_name : simple_column_name
| symbol_table_alias_name '.' symbol_column_name
| symbol_table_alias_name '.' '*'
;
simple_column_name : symbol_column_name
;

Boolean expressions

search_condition : predicate
| search_condition OR search_condition
| search_condition AND search_condition
| NOT search_condition
;
predicate : comparison_predicate
| between_predicate
| like_predicate
| in_predicate
| null_predicate
| quantified_predicate
| exists_predicate
| containing_predicate
| starting_predicate
| unique_predicate
| '(' search_condition ')'
;

Comparisons

comparison_predicate : value '=' value
| value '<' value
| value '>' value
| value '>=' value
| value '⇐' value
| value NOT_GTR value
| value NOT_LSS value
| value NEQ value
;

Quantified comparisons

quantified_predicate : value '=' ALL '(' column_select')'
| value '<' ALL '(' column_select ')'
| value '>' ALL '(' column_select ')'
| value '>=' ALL '(' column_select ')'
| value '⇐' ALL '(' column_select ')'
| value NOT_GTR ALL '(' column_select ')'
| value NOT_LSS ALL '(' column_select ')'
| value NEQ ALL '(' column_select ')'
| value '=' some '(' column_select ')'
| value '<' some '(' column_select ')'
| value '>' some '(' column_select ')'
| value '>=' some '(' column_select ')'
| value '⇐' some '(' column_select ')'
| value NOT_GTR some '(' column_select ')'
| value NOT_LSS some '(' column_select ')'
| value NEQ some '(' column_select ')'
;
some : SOME
| ANY
;

Other predicates

between_predicate : value BETWEEN value AND value
| value NOT BETWEEN value AND value
;
like_predicate : value LIKE value
| value NOT LIKE value
| value LIKE value ESCAPE value
| value NOT LIKE value ESCAPE value
;
in_predicate : value IN scalar_set
| value NOT IN scalar_set
;
containing_predicate : value CONTAINING value
| value NOT CONTAINING value
;
starting_predicate ]] : value STARTING value
| value NOT STARTING value
| value STARTING WITH value
| value NOT STARTING WITH value
;
exists_predicate : EXISTS '(' select_expr ')'
;
unique_predicate : SINGULAR '(' select_expr ')'
;
null_predicate : value IS NULL
| value IS NOT NULL
;

Set values

scalar_set : '(' constant_list ')'
| '(' column_select ')'
;
column_select : SELECT distinct_clause value from_clause where_clause group_clause having_clause plan_clause
;
column_singleton : SELECT distinct_clause value from_clause where_clause group_clause having_clause plan_clause
;

Value types

value : column_name
| array_element
| function
| u_constant
| parameter
| variable
| udf
| '-' value
| '+' value
| value '+' value
| value '' value
| value COLLATE symbol_collation_name
| value '-' value
| value '*' value
| value '/' value
| '(' value ')'
| '(' column_singleton ')'
| USER
| DB_KEY
| symbol_table_alias_name '.' DB_KEY
| VALUE
| datetime_value_expression
;
datetime_value_expression : CURRENT_DATE
| CURRENT_TIME
| CURRENT_TIMESTAMP
;
array_element : column_name '[' value_list ']'
;
value_list : value
| value_list ',' value
;
constant : u_constant
| '-' u_numeric_constant
;
u_numeric_constant : NUMERIC
| NUMBER
| FLOAT
| NUMBER64BIT
| SCALEDINT
;
u_constant : u_numeric_constant
| sql_string
| DATE STRING
| TIME STRING
| TIMESTAMP STRING
;
constant_list : constant
| parameter
| current_user
| constant_list ',' constant
| constant_list ',' parameter
| constant_list ',' current_user
;
parameter : '?'
;
current_user : USER
;
sql_string : STRING
| INTRODUCER STRING
;
signed_short_integer : nonneg_short_integer
| '-' neg_short_integer
;
nonneg_short_integer : NUMBER
;
neg_short_integer : NUMBER
;
pos_short_integer : nonneg_short_integer
;
unsigned_short_integer : NUMBER
;
signed_long_integer : long_integer
| '-' long_integer
;
long_integer : NUMBER
;
function : COUNT '(' '*' ')'
| COUNT '(' all_noise value ')'
| COUNT '(' DISTINCT value ')'
| SUM '(' all_noise value ')'
| SUM '(' DISTINCT value ')'
| AVG '(' all_noise value ')'
| AVG '(' DISTINCT value ')'
| MINIMUM '(' all_noise value ')'
| MINIMUM '(' DISTINCT value ')'
| MAXIMUM '(' all_noise value ')'
| MAXIMUM '(' DISTINCT value ')'
| CAST '(' rhs AS data_type_descriptor ')'
| UPPER '(' value ')'
| GEN_ID '(' symbol_generator_name ',' value ')'
| EXTRACT '(' timestamp_part FROM value ')'
;
udf : symbol_UDF_name '(' value_list ')'
| symbol_UDF_name '(' ')'
;
timestamp_part : YEAR
| MONTH
| DAY
| HOUR
| MINUTE
| SECOND
| WEEKDAY
| YEARDAY
;
all_noise : ALL
| /* empty */
;
null_value : NULL
;

Performs special mapping of keywords into symbols

symbol_UDF_name : SYMBOL
;
symbol_blob_subtype_name :SYMBOL
;
symbol_character_set_name :SYMBOL
;
symbol_collation_name :SYMBOL
;
symbol_column_name :SYMBOL
;
symbol_constraint_name :SYMBOL
;
symbol_cursor_name :SYMBOL
;
symbol_domain_name :SYMBOL
;
symbol_exception_name :SYMBOL
;
symbol_filter_name :SYMBOL
;
symbol_gdscode_name :SYMBOL
;
symbol_generator_name :SYMBOL
;
symbol_index_name :SYMBOL
;
symbol_item_alias_name :SYMBOL
;
symbol_procedure_name :SYMBOL
;
symbol_role_name :SYMBOL
;
symbol_table_alias_name :SYMBOL
;
symbol_table_name :SYMBOL
;
symbol_trigger_name :SYMBOL
;
symbol_user_name :SYMBOL
;
symbol_variable_name :SYMBOL
;
symbol_view_name :SYMBOL
;

back to top of page

Any comments? Send an email to register@ibexpert.biz

COPYRIGHT © 2002-2022 HK-Software, IBExpert Ltd. All rights reserved. 

All IBExpert brand and product names are trademarks or registered trademarks of IBExpert Ltd 
in Malta and other countries. InterBase, Delphi, CodeGear and C++Builder are trademarks or 
registered trademarks of Embarcadero Technologies Inc. in the United States and other countries. 
Firebird is a registered trademark of the FirebirdSQL Foundation. Turbo Pascal is a registered 
trademark of Borland International, Inc. Sun, Java, JavaScript and Solaris are trademarks or 
registered trademarks of Sun Microsystems, Inc. or its subsidiaries in the United States and 
other countries. UNIX is a registered trademark in the United States and other countries, 
exclusively licensed through "The Open Group". Oracle is a registered trademark of Oracle 
Corporation in the United States and other countries. All Microsoft brand and product names 
are trademarks or registered trademarks of Microsoft Corporation in the United States and 
other countries. AS/400, DB2, IBM, Informix and iSeries are trademarks or registered 
trademarks of IBM Corporation in the United States and other countries. Linux is a 
registered trademark of Linux Torvalds. All other product names mentioned herein and 
throughout the entire web site are trademarks of their respective owners.