"
tableddl_lock_test (
idnumber
);
到ddl_lock_testvalues (1);
sessionsetddl_lock_timeout=20;
tableddl_lock_testadd (
名称varchar2 (20)
);
alter table ddl_lock_test add (namevarchar2 (20)
表表
tableddl_lock_testadd (
名称varchar2 (20)
);
Tablealtered。
,
,