Uses of Interface java.sql.Ref (Java Platform SE 8 )
Date: 2026-03-16

## Uses of Interface
java.sql.Ref

- Packages that use Ref
  Package | Description
  --- | ---
  java.sql | Provides the API for accessing and processing data stored in a data source (usually a relational database) using the JavaTM programming language.
  javax.sql | Provides the API for server side data source access and processing from the JavaTM programming language.
  javax.sql.rowset | Standard interfaces and base classes for JDBC `RowSet` implementations.
  javax.sql.rowset.serial | Provides utility classes to allow serializable mappings between SQL types and data types in the Java programming language.

- - ### Uses of Ref in java.sql

    Methods in java.sql that return Ref
    Modifier and Type | Method and Description
    --- | ---
    `Ref` | CallableStatement.`getRef(int parameterIndex)` Retrieves the value of the designated JDBC `REF(<structured-type>)` parameter as a `Ref` object in the Java programming language.
    `Ref` | ResultSet.`getRef(int columnIndex)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `Ref` object in the Java programming language.
    `Ref` | CallableStatement.`getRef(String parameterName)` Retrieves the value of a JDBC `REF(<structured-type>)` parameter as a `Ref` object in the Java programming language.
    `Ref` | ResultSet.`getRef(String columnLabel)` Retrieves the value of the designated column in the current row of this `ResultSet` object as a `Ref` object in the Java programming language.
    `Ref` | SQLInput.`readRef()` Reads an SQL `REF` value from the stream and returns it as a `Ref` object in the Java programming language.

    Methods in java.sql with parameters of type Ref
    Modifier and Type | Method and Description
    --- | ---
    `void` | PreparedStatement.`setRef(int parameterIndex, Ref x)` Sets the designated parameter to the given `REF(<structured-type>)` value.
    `void` | ResultSet.`updateRef(int columnIndex, Ref x)` Updates the designated column with a `java.sql.Ref` value.
    `void` | ResultSet.`updateRef(String columnLabel, Ref x)` Updates the designated column with a `java.sql.Ref` value.
    `void` | SQLOutput.`writeRef(Ref x)` Writes an SQL `REF` value to the stream.

  - ### Uses of Ref in javax.sql

    Methods in javax.sql with parameters of type Ref
    Modifier and Type | Method and Description
    --- | ---
    `void` | RowSet.`setRef(int i, Ref x)` Sets the designated parameter in this `RowSet` object's command with the given `Ref` value.

  - ### Uses of Ref in javax.sql.rowset

    Methods in javax.sql.rowset with parameters of type Ref
    Modifier and Type | Method and Description
    --- | ---
    `void` | BaseRowSet.`setRef(int parameterIndex, Ref ref)` Sets the designated parameter to the given `Ref` object in the Java programming language.

  - ### Uses of Ref in javax.sql.rowset.serial

    Classes in javax.sql.rowset.serial that implement Ref
    Modifier and Type | Class and Description
    --- | ---
    `class` | `SerialRef` A serialized mapping of a `Ref` object, which is the mapping in the Java programming language of an SQL `REF` value.

    Methods in javax.sql.rowset.serial that return Ref
    Modifier and Type | Method and Description
    --- | ---
    `Ref` | SQLInputImpl.`readRef()` Retrieves the value at the head of this `SQLInputImpl` object as a `Ref` object in the Java programming language.

    Methods in javax.sql.rowset.serial with parameters of type Ref
    Modifier and Type | Method and Description
    --- | ---
    `void` | SQLOutputImpl.`writeRef(Ref x)` Writes a `Ref` object in the Java programming language to this `SQLOutputImpl` object.

    Constructors in javax.sql.rowset.serial with parameters of type Ref
    Constructor and Description
    `SerialRef(Ref ref)` Constructs a `SerialRef` object from the given `Ref` object.

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