MD5算法是一个在电子商务中广泛应用的() 对称加密算法。 公开密钥算法。 散列算法。 私有密钥算法。
不得从事液化石油气充装的人员是()。 充装员。 检查员。 站长。 技术负责人。
Identify the two situations in which the alert log file is updated with details. () Running a query on a table returns "ORA-600: Internal Error."。 Inserting a value in a table returns "ORA-01722: invalid number."。 Creating a table returns "ORA-00955: name is already used by an existing object."。 Inserting a value in a table returns "ORA-00001: unique constraint (SYS.PK_TECHP) violated."。 Rebuilding an index using ALTER INDEX ...REBUILD fails with an error "ORA-01578: ORACLE data block corrupted (file # 14, block # 50).。
The CUSTOMERS table has these columns: The CUSTOMER_ID column is the primary key for the table.Which two statements find the number of customers? () SELECT TOTAL(*) FROM customers;。 SELECT COUNT(*) FROM customers;。 SELECT TOTAL(customer_id) FROM customers;。 SELECT COUNT(customer_id) FROM customers;。 SELECT COUNT(customers) FROM customers;。 SELECT TOTAL(customer_name) FROM customer。
水利水电建设工程竣工验收的成果是(),他也是工程移交的依据。 A."竣工验收报告书" 。 B."竣工验收合格书" 。 C."竣工移交鉴定书" 。 D."竣工验收鉴定书"。
In which scenario will you perform an incomplete recovery?()