This overhead does not exist when reading full XML documents from a CLOB where the XML is already stored in text form.

当从CLOB(在clob中xml本来就是以文本形式存储的)读取完整的XML文档时，不存在此开销。

youdao

Dynamic text elements are most often used to display CLOB data type values.

动态文本元素经常用来显示CLOB数据类型值。

youdao

Datatypes like VARCHAR and CLOB allow you to store plain ASCII text, and BLOBs provide for storage of complex (proprietary) types of data, like.pdf,.doc,.ppt,.rtf,.xml and so on.

诸如VARCHAR和clob之类的数据类型允许您存储无格式ascii文本，而BLOB数据类型允许存储复杂(专有)类型的数据，如. pdf、。doc、。ppt、。rtf、。xml等。

youdao

Datatypes like VARCHAR and CLOB allow you to store plain ASCII text, and BLOBs provide for storage of complex (proprietary) types of data, like.pdf,.doc,.ppt,.rtf,.xml and so on.

诸如VARCHAR和clob之类的数据类型允许您存储无格式ascii文本，而BLOB数据类型允许存储复杂(专有)类型的数据，如. pdf、。doc、。ppt、。rtf、。xml等。

youdao