單項選擇題

Which of the following NLS_SORT parameter values would result in case-insensitive and accent-insensitive binary sorts？（）

A. NLS_SORT = BINARY
B. NLS_SORT = BINARY_AI
C. NLS_SORT = BINARY_CI
D. NLS_SORT = BINARY_AI_CI
E. Binary sorts are case insensitive and accent insensitive by default

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單項選擇題

Automatic data conversion will occur if which of the following happens？（）

A. The client and server have different NLS_LANGUAGE settings
B. The client and server character sets are not the same，and the database character set is not a strict superset of the client character set
C. The client and server are in different time zones
D. The client requests automatic data conversion
E. The AUTO_CONVERT initialization parameter is set to TRUE

單項選擇題

In a database with the database character set of US7ASCII and a national character set of UTF-8， which datatypes would be capable of storing Unicode data by default？（）

A. VARCHAR2
B. CHAR
C. NVARCHAR2
D. CLOB
E. LONG

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Which of the following NLS_SORT parameter values would result in case-insensitive and accent-insensitive binary sorts？（）

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Automatic data conversion will occur if which of the following happens？（）

In a database with the database character set of US7ASCII and a national character set of UTF-8， which datatypes would be capable of storing Unicode data by default？（）

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Automatic data conversion will occur if which of the following happens？（）

In a database with the database character set of US7ASCII and a national character set of UTF-8， which datatypes would be capable of storing Unicode data by default？（）