Реферат: Некоторые черты SQL92 и SQL-3

({<comma> <get item information>}...]

<get count> ::=

<simple target specification 1>

<equals operator> COUNT

<get item information> ::=

<simple target specification 2>

<equals operator>

<descriptor item name>

<item number> ::= <simple value specification>

<simple target specification 1> ::= <simple target specification>

<simple target specification 2> ::= <simple target specification>

<descriptor item name> ::=

TYPE

( LENGHT

( OCTET_LENGHT

( RETURNED_LENGHT

( RETURNED_OCTET_LENGHT

( PRECISION

( SCALE

( DATETIME_INTERVAL_CODE

( DATATIME_INTERVAL_PRECISION

( NULLABLE

( INDICATOR

( DATA

( NAME

( UNNAMED

( COLLATION_CATALOG

( COLLATION_SCHEMA

( COLLATION_NAME