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How I can use hierarchicalid data type?

Member 14641515 asked:

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Memberid INT NOT NULL,
Lvl AS hid.GetLevel() PERSISTED,
MemberName VARCHAR(25) NOT

1-How I can insert into the table?
2-how I can set the Hid or deal with it
3-how to use function like GetDescendant to get the benefit from using hierarchical column


What I have tried:

It's my first time deal with hierarchical column
Tags: SQL


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