tech.ydb.jdbc

Interface YdbResultSetMetaData

All Superinterfaces:

ResultSetMetaData, Wrapper

All Known Implementing Classes:

YdbResultSetMetaDataImpl

public interface YdbResultSetMetaData
extends ResultSetMetaData

Field Summary

Fields inherited from interface java.sql.ResultSetMetaData

columnNoNulls, columnNullable, columnNullableUnknown

Method Summary

Modifier and Type	Method and Description
int	getColumnIndex(String columnName) Returns column index by it's name, could be useful sometimes; basically because in YDB you should always work with names (columns or parameters), indexes are just internal details
default Collection<String>	getColumnNames() Returns all column names
tech.ydb.table.values.Type	getYdbType(int column) Returns native YDB type for column

Methods inherited from interface java.sql.ResultSetMetaData

getCatalogName, getColumnClassName, getColumnCount, getColumnDisplaySize, getColumnLabel, getColumnName, getColumnType, getColumnTypeName, getPrecision, getScale, getSchemaName, getTableName, isAutoIncrement, isCaseSensitive, isCurrency, isDefinitelyWritable, isNullable, isReadOnly, isSearchable, isSigned, isWritable

Methods inherited from interface java.sql.Wrapper

isWrapperFor, unwrap

Method Detail

getYdbType

tech.ydb.table.values.Type getYdbType(int column)
                               throws SQLException

Returns native YDB type for column

Parameters:

column - column, 1..N

Returns:

YDB type

Throws:

SQLException

getColumnIndex

int getColumnIndex(String columnName)
            throws SQLException

Returns column index by it's name, could be useful sometimes; basically because in YDB you should always work with names (columns or parameters), indexes are just internal details

Parameters:

columnName - column name to find

Returns:

column (1..N)

Throws:

SQLException - if column is unknown

getColumnNames

default Collection<String> getColumnNames()
                                   throws SQLException

Returns all column names

Returns:

column names

Throws:

SQLException - in case something bad happens