PL / SQL отличается от t-sql, я внес некоторые изменения для вас, но обязательно посмотрите ссылки Энди. Он был запущен в бесплатном Oracle Developer (который также имеет «Обработчик царапин перевода» (инструменты> Миграция> Обработчик царапин перевода), который может быть полезен.
--this creates a refcursor to allow us to simply print the results
var refc refcursor
/
declare --here we declare our variables
product_name_1 varchar2(15) ;
offer_valid_date_1 date ;
trade_count_1 number ;
product_name_2 varchar2(15) ;
offer_valid_date_2 date ;
trade_count_2 number ;
begin
begin --this creates a block so we may handle any exceptions just to this
select PRODUCT_NAME, MAX(EXPIRY_DATE), COUNT(DEAL_NUMBER)
into product_name_1 , offer_valid_date_1 , trade_count_1
--in oracle you select INTO, not var=COL
from (
--Data extractions with several joins goes here....
select
123 PRODUCT_NAME,
sysdate EXPIRY_DATE,
5 DEAL_NUMBER
from dual --this is a 'fake' table to generate some data for testing
) TempTable1 --drop the "as"
GROUP BY PRODUCT_NAME ;
exception --if not data is found, then this error is thrown
--if multiple values are thrown an error will also be thrown (not caught here)
when no_data_found then
product_name_1 := null ; --note, to do a var = , we use "var := value;"
offer_valid_date_1 := null;
trade_count_1 := null;
end ;
begin
select PRODUCT_NAME, MAX(EXPIRY_DATE), COUNT(DEAL_NUMBER)
into product_name_2 , offer_valid_date_2 , trade_count_2
--in oracle you select INTO, not var=COL
from (
--Data extractions with several joins goes here....
select 555 PRODUCT_NAME, sysdate EXPIRY_DATE, 6 DEAL_NUMBER
from dual
) TempTable2 -- drop the "as"
GROUP BY PRODUCT_NAME ;
exception --if not data is found, then this error is thrown
--if multiple values are thrown an error will also be thrown (not caught here)
when no_data_found then
product_name_2 := null ;
offer_valid_date_2 := null;
trade_count_2 := null;
end ;
open :refc for --you cannot just have a select statement, you must "open" a cursor for it
--oracle IsNull is NVL (or NVL2 or you can do a case or decode...)
SELECT nvl(PRODUCT_NAME_1,'Product 1') AS PRODUCT_NAME
, OFFER_VALID_DATE_1 AS MAX_MATURITY
, nvl(TRADE_COUNT_1,0)
FROM DUAL --you also must have a table, DUAL is an oracle table for this tasks
UNION
SELECT nvl(PRODUCT_NAME_2,'Product 2') AS PRODUCT_NAME
, OFFER_VALID_DATE_2 AS MAX_MATURITY
, nvl(TRADE_COUNT_2,0)
FROM DUAL;
end ;
/
--now print the results, if you did this in a proc you would simple have this as an output
print refc;
-------------
PRODUCT_NAME MAX_MATURITY NVL(:B1,0)
-------------------------------------- ----------------------
123 18.FEB.2011 08:43 1
555 18.FEB.2011 08:43 1
Понятия Oracle, используемые здесь:
Двойной стол , NVL , Переменные , pl / sql Исключение
и посмотрите на это http://www.dba -oracle.com / t_convent_sql_server_tsql_oracle_plsql.htm