Oracle SQL:从带有嵌套表的表中选择
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Oracle SQL: select from table with nested table
提问by Igor Konoplyanko
I wonder how can i make select statement from table which have a typed column ? Type of this column is defined as:
我想知道如何从具有类型列的表中选择语句?此列的类型定义为:
create or replace TYPE "MYCOL" as table of MYTYPE;
create or replace TYPE "MYTYPE" as OBJECT
( myid Number, myname Varchar2);
UPD1Table is defined as
UPD1表定义为
CREATE TABLE "T_TABLE"
( "ID" NUMBER NOT NULL ENABLE, "NAME" "MYCOL" )
If i select this column with select * from T_TABLE
i will get this not informative result:
如果我选择此列,select * from T_TABLE
我将得到此不提供信息的结果:
1, MYSCHEMA.MYCOL([MYSCHEMA.MYTYPE],[MYSCHEMA.MYTYPE])
I want just to unwrap this types.
我只想解开这些类型。
回答by A.B.Cade
Try it like this:
像这样尝试:
select t."ID", tt.myid, tt.myname
from "T_TABLE" t, table(t."NAME") tt;