ORACLE 自定义类型

用create type 变量as table of 类型和create type 变量as object(

字段1 类型1,

字段2 类型2

);

与type 变量is table of 类型和type 变量is record(

字段1 类型1,

字段2 类型2

);

区别是用create 后面用as , 若直接用type 后面用is

create 是创object , 而type 是创record .

1. TYPE tabletype IS TABLE OF type INDEX BY BINARY_INTEGER;

定义:TYPE t_charTable IS TABLE OF VARCHAR2(10) INDEX BY BINARY_INTEGER;

引用:tableName(index);

例子:

declare

type t_table is table of varchar2(10) index by BINARY_integer;

MyTab t_table;

begin

MyTab(1) := 'A';

MyTab(2) := 'B';

MyTab(3) := 'C';

DBMS_OUTPUT.PUT_LINE('First index:'||' '|| mytab(1) ||' ');

end;

DECLARE

TYPE t_StudentTable IS TABLE OF students%ROWTYPE INDEX BY