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Implement dynamic loading tree using ExtJS
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Use ExtJS to implement dynamic loading tree (Load tree)
1. Database background:
Oracle DDL script:
create table ORGANIZATION(
ORGID NUMBER(10) not null,
PARENTID NUMBER(10) not null,
ORGNAME VARCHAR2(32) not null,
ISAVAILABLE NUMBER(1) default 1 not null
);
alter table ORGANIZATION
add constraint PK_ORGID primary key (ORGID);
alter table ORGANIZATION
add constraint FK_ORGID_PARENTID foreign key (PARENTID)
references ORGANIZATION (ORGID);
Initialize data content (note that the first row of data is required):

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