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declare
type v_ar is varray(10) of varchar2(30);
my_ar v_ar:=v_ar('g','m','d','¹¨','˧');
begin
for i in 1..my_ar.count
loop
dbms_output.put_line(my_ar(i));
end loop;
end;
declare
type v_ar is varray(10) of varchar2(30);
my_ar v_ar:=v_ar('g','m','d','¹¨','˧');
begin
for i in 1..my_ar.count
loop
dbms_output.put_line(my_ar(i));
end loop;
end;
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Sql´úÂë
declare
type v_table is table of varchar2(30) index by binary_integer;
--ÀàÐÍ¿ÉÒÔÊÇÇ°ÃæµÄÀàÐͶ¨Ò壬index by binary_integer×Ó¾ä´ú±íÒÔ·ûºÅÕûÊýΪË÷Òý£¬
--ÕâÑù·ÃÎʱíÀàÐͱäÁ¿ÖеÄÊý¾Ý·½·¨¾ÍÊÇ“±í±äÁ¿Ãû(Ë÷Òý·ûºÅÕûÊý)”¡£
my_table v_table;
begin
for i in 1..20
loop
my_table(i):=i;
dbms_output.put_line(my_table(i));
end loop;
end;
declare
type v_table is table of varchar2(30) index by binary_integer;
--ÀàÐÍ¿ÉÒÔÊÇÇ°ÃæµÄÀàÐͶ¨Ò壬index by binary_integer×Ó¾ä´ú±íÒÔ·ûºÅÕûÊýΪË÷Òý£¬
--
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CREATE [OR REPLACE] DIRECTORY directory
AS 'pathname
';
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create or replace directory exp_dir as '/tmp';
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select * from (select * from staff order by dbms_random.random)
where rownum < 4
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SELECT DBMS_RANDOM.RANDOM from DUAL;
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A:Select Now()
S:Selec ......