在国产数据库迅猛发展的今天，不少开发者和企业开始将目光从 Oracle 转向达梦、OceanBase、TiDB、GaussDB、KINGBASE 等国产替代方案。一时间，“Oracle 已死”“学 Oracle 没前途”等言论甚嚣尘上，让许多正在学习或使用 Oracle 的人感到焦虑与迷茫。

在12月“DB-Engines关系型数据库排行榜”中，国产数据库TiDB、OceanBase、阿里云PolarDB分列44、52、53位；南大通用GBase数据库在关系型数据库中全球排名第61位，较去年同期（77位）提升16名，排名国产数据库第四名；腾讯TDSQL数据库（77位）和华为OpenGauss数据库（79位）则紧随其后，分别位列国产数据库第五、六名。

8、 首次通过Windows开始菜单启动Oracle SQL Developer时，系统会弹出对话框，提示用户输入java.exe的完整路径以完成配置。 10、 用户可点击Browse按钮，在Oracle安装目录中定位java.exe，确认选择后单击OK，即可启动Oracle SQL Developer。

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