#include "SqlExp.h" SqlId A("A"); SqlId TABLE("TABLE"); SqlId B("B"); CONSOLE_APP_MAIN { SqlSet s = Select(Nvl(A, B)).From(TABLE).Where(A >= GetSysDate()); DUMP(SqlCompile(MYSQL, ~s)); DUMP(SqlCompile(MSSQL, ~s)); DUMP(SqlCompile(SQLITE3, ~s)); DUMP(SqlCompile(ORACLE, ~s)); }