You want to rebuild a free list in the free lists of the EMPLOYEE table in the Scott schema. Which package will you use to accomplish this?() DBMS_REPAIR。 DBMS_SCHDULER。 DBMS_STATS。 DBMS_RESOURCE_MANAGER。
锅炉的通风方式有()、()、()、()。离心式风机主要由()、()、()、()和()等构件组成。
亚历山大二世的改革和彼得一世的改革的最大区别在于()。 鼓励兴办手工工场。 建立强大的海军。 增强了俄国的国力。 使俄国的社会性质发生了变化。
施工现场工作
You want to create a role to meet these requirements: 1:The role is to be protected from unauthorized usage. 2:The password of the role is not to be embedded in the application source code or stored in a table. Which method would you use to restrict enabling of such roles() Create the role with global authentication.。 Create the role with external authentication.。 Create the role as a secure application role.。 Create the role as a password-protected role.。 Create a role and use Fine-Grained Access Control (FGAC) to secure the role.。
金先生,52岁。十二指肠溃疡25年,上腹部隐痛1年,近1个月又出现呕吐,吐隔夜宿食,呕吐逐渐加重;精神状态差,消瘦明显,皮肤弹性差,贫血貌;胃镜检查确诊为十二指肠溃疡并幽门梗阻。决定近期行胃大部切除术。特殊的术前准备是()