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UltraLite data types

an_SQL_code A data type for holding SQL error codes.
ul_char A data type representing a character. If the operating system uses Unicode, ul_char uses two bytes per character. For single-byte character sets, ul_char uses a single byte per character.
ul_binary A data type representing one byte of binary information.
ul_column_num A data type for holding a number indicating a column of a table or query. The first column in the table or query is number one.
ul_fetch_offset A data type for holding a relative number in a ULCursor object.
ul_length A data type for holding the length of a data type.

DECL_DATETIME A type for holding date and time information in a SQLDATETIME structure, which is defined as follows:

typedef struct sqldatetime {
   unsigned short year; /* e.g. 1999 */
   unsigned char month; /* 0-11 */
   unsigned char day_of_week; /* 0-6 0=Sunday */
   unsigned short day_of_year; /* 0-365 */
   unsigned char day; /* 1-31 */
   unsigned char hour; /* 0-23 */
   unsigned char minute; /* 0-59 */
   unsigned char second; /* 0-59 */
   unsigned long microsecond; /* 0-999999 */
} SQLDATETIME;

DECL_DATETIME is also used in embedded SQL programming. Other embedded SQL data types with named DECL_type are not needed in C++ API programming.

UL_NULL A constant representing a SQL NULL.