Unkown query: insert select *.%%bmk%%

Question

can someone explain me what this line means:

insert <TableNameX> select *,%%bmk%% from<TableNameX>

i saw a question about the same but cannot understand what it means. can someone explain what is this %%bmk%%? p/s - the insert and the From , is the same table . the Line appeard while dropping and creating indexes on - TableNameX.

Answer 1

It's the bulk loading of data associated with SQL Server Reindex operation