文档解释 ORA-54012: virtual column is referenced in a column expression Cause: This virtual column was referenced in an expression of another virtua……

文档解释 ORA-54018: A virtual column exists for this expression Cause: Specified index expression matches an existing virtual column” Action: Re-iss……

Linux文件系统模拟是一种在虚拟环境中仿真服务器环境的技术。它让开发者可以在虚拟硬件和软件环境中测试Linux文件系统，而不用担心损坏实体硬件。这种新的方法……

使用Redis轻松实现虚拟化 随着互联网技术的不断发展，虚拟化技术越来越被广泛应用。虚拟化技术可以将一台物理设备虚拟出多台逻辑设备，从而提高硬件利用率、……

文档解释 ORA-64140: missing chaining XMLTABLE for VIRTUAL column in the index Cause: An attempt was made to create an XML index with VIRTUAL column ……

文档解释 ORA-55339: a virtual model already exists for the specified model-rulebase combination Cause: A virtual model with identical components was……

文档解释 ORA-54000: Virtual column feature not yet implemented Cause: Feature has not been implemented. Action: Feature is being implemented. ORA-5……

文档解释 ORA-54034: virtual columns not allowed in functional index expressions Cause: An attempt was made to create a functional index with an expr……

The Linux chvt command is an essential tool for keyboard shortcuts or many simultanous virtual consoles. Have you ever wanted to quickly switch betw……

文档解释 ORA-55480: model participating in a virtual model may not be VPD-enabled Cause: An attempt was made to VPD-enable a model that participated……