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The getxxx methods, where xxx is a Java type, can take column labels or column position numbers for an argument. (findColumn ("label") can return column position.)
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JDBC API contains a table telling which getxxx methods can be used with particular SQL types.
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ResultSet.getMetaData returns a ResultSetMetaData object which gives the number, types and properties of the ResultSet object's columns.
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Can use streams on LONG SQL types.
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For optional or multiple ResultSets, there are methods getResultSet, getUpdateCount, and getMoreResults.
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