Summary: Constants | Methods | Inherited Methods

ResultSetMetaData

public interface ResultSetMetaData
implements Wrapper

java.sql.ResultSetMetaData

Known indirect subclasses

RowSetMetaData An object that contains information about the columns in a RowSet object.

An object that can be used to get information about the types and properties of the columns in a ResultSet object. The following code fragment creates the ResultSet object rs, creates the ResultSetMetaData object rsmd, and uses rsmd to find out how many columns rs has and whether the first column in rs can be used in a WHERE clause.

 ResultSet rs = stmt.executeQuery("SELECT a, b, c FROM TABLE2"); ResultSetMetaData rsmd = rs.getMetaData(); int numberOfColumns = rsmd.getColumnCount(); boolean b = rsmd.isSearchable(1);

Summary

Constants
`int`	`columnNoNulls` The constant indicating that a column does not allow `NULL` values.
`int`	`columnNullable` The constant indicating that a column allows `NULL` values.
`int`	`columnNullableUnknown` The constant indicating that the nullability of a column's values is unknown.

Public methods
`abstract String`	`getCatalogName(int column)` Gets the designated column's table's catalog name.
`abstract String`	`getColumnClassName(int column)` Returns the fully-qualified name of the Java class whose instances are manufactured if the method `ResultSet.getObject` is called to retrieve a value from the column.
`abstract int`	`getColumnCount()` Returns the number of columns in this `ResultSet` object.
`abstract int`	`getColumnDisplaySize(int column)` Indicates the designated column's normal maximum width in characters.
`abstract String`	`getColumnLabel(int column)` Gets the designated column's suggested title for use in printouts and displays.
`abstract String`	`getColumnName(int column)` Get the designated column's name.
`abstract int`	`getColumnType(int column)` Retrieves the designated column's SQL type.
`abstract String`	`getColumnTypeName(int column)` Retrieves the designated column's database-specific type name.
`abstract int`	`getPrecision(int column)` Get the designated column's specified column size.
`abstract int`	`getScale(int column)` Gets the designated column's number of digits to right of the decimal point.
`abstract String`	`getSchemaName(int column)` Get the designated column's table's schema.
`abstract String`	`getTableName(int column)` Gets the designated column's table name.
`abstract boolean`	`isAutoIncrement(int column)` Indicates whether the designated column is automatically numbered.
`abstract boolean`	`isCaseSensitive(int column)` Indicates whether a column's case matters.
`abstract boolean`	`isCurrency(int column)` Indicates whether the designated column is a cash value.
`abstract boolean`	`isDefinitelyWritable(int column)` Indicates whether a write on the designated column will definitely succeed.
`abstract int`	`isNullable(int column)` Indicates the nullability of values in the designated column.
`abstract boolean`	`isReadOnly(int column)` Indicates whether the designated column is definitely not writable.
`abstract boolean`	`isSearchable(int column)` Indicates whether the designated column can be used in a where clause.
`abstract boolean`	`isSigned(int column)` Indicates whether values in the designated column are signed numbers.
`abstract boolean`	`isWritable(int column)` Indicates whether it is possible for a write on the designated column to succeed.

Inherited methods

From interface java.sql.Wrapper

`abstract boolean`	`isWrapperFor(Class<?> iface)` Returns true if this either implements the interface argument or is directly or indirectly a wrapper for an object that does.
`abstract <T> T`	`unwrap(Class<T> iface)` Returns an object that implements the given interface to allow access to non-standard methods, or standard methods not exposed by the proxy.

ResultSetMetaData

Summary

Constants

Public methods

Inherited methods

Constants

columnNoNulls

columnNullable

columnNullableUnknown

Public methods

getCatalogName

getColumnClassName

getColumnCount

getColumnDisplaySize

getColumnLabel

getColumnName

getColumnType

getColumnTypeName

getPrecision

getScale

getSchemaName

getTableName

isAutoIncrement

isCaseSensitive

isCurrency

isDefinitelyWritable

isNullable

isReadOnly

isSearchable

isSigned

isWritable