JDK14/Java14源码在线阅读

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 * by Oracle in the LICENSE file that accompanied this code.
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
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package java.sql;

/**
 * The mapping in the Java™ programming language
 * for the SQL <code>NCLOB</code> type.
 * An SQL <code>NCLOB</code> is a built-in type
 * that stores a Character Large Object using the National Character Set
 *  as a column value in a row of  a database table.
 * <P>The <code>NClob</code> interface extends the <code>Clob</code> interface
 * which provides methods for getting the
 * length of an SQL <code>NCLOB</code> value,
 * for materializing a <code>NCLOB</code> value on the client, and for
 * searching for a substring or <code>NCLOB</code> object within a
 * <code>NCLOB</code> value. A <code>NClob</code> object, just like a <code>Clob</code> object, is valid for the duration
 * of the transaction in which it was created.
 * Methods in the interfaces {@link ResultSet},
 * {@link CallableStatement}, and {@link PreparedStatement}, such as
 * <code>getNClob</code> and <code>setNClob</code> allow a programmer to
 * access an SQL <code>NCLOB</code> value.  In addition, this interface

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