naming conventions NANVL function (Oracle) NATIONAL CHAR datatype Oracle platform comparison SQL Server NATIONAL CHAR VARYING datatype Oracle platform comparison SQL Server NATIONAL CHARACTER datatype Oracle platform comparison SQL Server NATIONAL CHARACTER VARYING datatype MySQL Oracle platform comparison SQL Server NATIONAL TEXT datatype platform comparison SQL Server NATURAL [INNER {LEFT RIGHT}[ OUTER] ] JOIN NCHAR datatype MySQL Oracle platform comparison SQL Server NCHAR function Oracle SQL Server NCHAR VARYING datatype Oracle platform comparison NCHAR( ) datatype SQL Server 2nd Sybase adaptive server NCLOB datatype Oracle platform comparison nested parentheses and operator precedence nested tables in FROM clause Oracle subqueries NETMASK function (PostgreSQL) NETWORK function (PostgreSQL) NEW_TIME function (Oracle) NEWID( ) function SQL Server NEXT_DAY function (Oracle) NLS_CHARSET_DECL_LEN function (Oracle) NLS_CHARSET_ID function (Oracle) NLS_CHARSET_NAME function (Oracle) NLS_INITCAP function (Oracle) NLS_LOWER function (Oracle) NLS_UPPER function (Oracle) NLSSORT function (Oracle) nondeterministic functions not equal to (!=) operator 2nd 3rd not greater than (!>) operator not less than (!<) operator NOT operator NOW( ) function (MySQL) NPOINTS function (PostgreSQL) NTEXT datatype platform comparison SQL Server 2nd NTILE function (Oracle) NULL values NULLIF function DB2 MySQL Oracle PostgreSQL SQL Server NUM datatype DB2 NUMBER datatype Oracle platform comparison NUMERIC datatype DB2 MySQL Oracle platform comparison PostgreSQL 2nd SQL Server 2nd numeric datatype and unary operators numeric functions enhanced NUMTODSINTERVAL function (Oracle) NUMTOYMINTERVAL function (Oracle) NVARACHAR( ) datatype (Sybase Adaptive Server) NVARCHAR datatype MySQL platform comparison SQL Server NVARCHAR2 datatype Oracle NVARCHAR2( ) datatype platform comparison NVL function (Oracle) NVL2 function (Oracle)
