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Java又不是C++,什么时候字符数组等于字符串了(对这句话我不负责任)? 而常量池中的字符串,只有变量名不同是可以用双等号判断是否相等的,内存都是常量池中的字符串. 但是new出来的字符串,只能用equals,用双等号是不相等的,因为是两个内存对象. String的equals首先判断比较的对象是否相等,相等返回true 然后判断参数是不是String类型,是String类型才会进行比较,否则直接返回false…
1Z0-053 争议题目解析541 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 541.If you use ALTER DISKGROUP ... ADD DISK and specify a wildcard for the discovery string, what happens to disks that are already a part of the same or another disk group? A. The command fails unle…
1Z0-053 争议题目解析 Summary 题目NO. 题目解析链接地址 题库答案 参考答案 考查知识点  24 http://www.cnblogs.com/jyzhao/p/5319220.html  BCE  BCD  SQL Test Case Builder  25 http://www.cnblogs.com/jyzhao/p/5265330.html  D  CDE  Additional Flashback Operations  46 http://www.cnblogs.c…
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1Z0-053 争议题目解析24 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 24.Which of the following information will be gathered by the SQL Test Case Builder for the problems pertaining to SQL-related problems? (Choose all that apply.) A. ADR diagnostic files B. all the opt…
1Z0-053 争议题目解析46 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 46.What happens when you run the SQL Tuning Advisor with limited scope? A. Access path analysis is not performed for SQL statements. B. SQL structure analysis is not performed for SQL statements. C. S…
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1Z0-053 争议题目解析154 考试科目:1Z0-053 题库版本:V13.02 题库中原题为: 154.A database is running in ARCHIVELOG mode and regular backups are performed. A user receives the following error message: Which is the recommended sequence of operations you need to perform for th…
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