You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
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alter table hl_tr.tr_courses_prepare_lesson_package add seminar_start_time datetime comment '互动研讨开始时间';
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alter table hl_tr.tr_courses_prepare_lesson_package add seminar_status tinyint(2) not null default 0 comment '互动研讨状态。0：未开始；1：进行中；2：已结束；';
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