不行吧。 c语言中倒是可以使用sql语句 如： main() { exec sql include sqlca exec sql begin declare section char prname[20]; char productno[8];exec sql end declare sectionprintf("Input producno:"); scanf("%s",&producno);exec sql select prname from product where productno=:productno into :prname;printf("Productname: %s\n",prname);exit();}
c 语言可以内嵌sql的 你在SQL 2000的帮助里找ESQL/C就可以找到。 有例程 我贴一点给你 int main(int argc, char *argv[]) { LOGINREC* login; // login rec pointer DBPROCESS* dbproc; // SQL Server connection structure pointer char cmd[150]; // command buffer char server[30]; // server name buffer int x = 1; // command line counter STATUS retc; // return code const char* sqlversion; // pointer for version string *server = '\0'; // null start these two buffers *cmd = '\0'; if(argc == 1) // if no server name, request it { printf("Enter Server Name: "); gets(server); } else // else it was input as first arg strcpy(server,argv[1]); if(argc < 2) // if no login id, request it { printf("Enter User Name: "); gets(cmd); } else // otherwise it was input as second arg. strcpy(cmd,argv[2]); // check to see if communications layer was loaded (DOS ONLY) if((sqlversion = dbinit()) == (BYTE *)NULL) { // DOS TSR (DBNMPIPE.EXE) is not loaded, don't bother going any farther printf("Error in DB-Library initialization, exiting\n"); return 1; } else printf("DB-Library version: %s\n",sqlversion); // print dblib version dbsettime(30); // set timeouts to 30 seconds
// set error/msg handlers for this program dbmsghandle((DBMSGHANDLE_PROC)msg_handler); dberrhandle((DBERRHANDLE_PROC)err_handler); login = dblogin(); // get a login rec DBSETLUSER(login,cmd); // set login id DBSETLHOST(login,"SQL EXAMPLE"); // set host name for sp_who DBSETLVERSION(login, DBVER60); // To use secure, or trusted, connection, uncomment the following line. // DBSETLSECURE (login); // open connection to requested server. Pass null server name for local // connection, if name not entered. if((dbproc = dbopen(login,(*server) ? server : (char *)NULL)) == (DBPROCESS *)NULL) { // no one answered, so couldn't connect or error occurred printf("Login failed\n"); return 1; } else { // loop on command input until quit or exit appears in first 4 bytes. while((strnicmp(cmd,"quit",4) != 0) && (strnicmp(cmd,"exit",4)!=0)) { printf("%d> ", x++); // print command prompt gets(cmd); // get command if(strnicmp(cmd,"go",2) == 0) // is it go { if(dbsqlexec(dbproc) == FAIL) // execute command { // problem occurred, just try another command printf("Error in executing command batch!\n"); x = 1; continue; } // command executed correctly, get results information while((retc = dbresults(dbproc)) != NO_MORE_RESULTS) { if (retc == FAIL) // if error get out of loop break; // headers and data could be printed here with only two // function calls, dbprhead(dbproc), and dbprrow(dbproc), // which would output the headers, and all the data to // standard output. However, that isn't very informative // toward understanding how this data is obtained and // processed, so I do it the hard way, one column at a time. PrintHeaders(dbproc); // print header data // loop on each row, until all read while((retc= dbnextrow(dbproc))!=NO_MORE_ROWS) { if(retc == FAIL) // if fail, then clear { // connection completely, just dbcancel(dbproc); // in case. break; } else PrintRow(dbproc); // else print the current row } if (DBCOUNT(dbproc) == 1L) // print the row count printf("(1 row effected)\n"); else printf("(%ld rows effected)\n",DBCOUNT(dbproc)); } // end while(dbresults()) x = 1; // reset command line counter } else { strcat(cmd," "); // go not detected, so put space dbcmd(dbproc,cmd); // between each command and set in } // dbproc. } // end while() dbclose(dbproc); // quit/exit input, close connection // print adios and exit. printf("SQL Server Connection to %s closed, bye bye.\n",server); return 0; } }/*
FROM MSDN:Setting Up the nsqlprep Precompiler Before you run the nsqlprep precompiler, do the following:The nsqlprep precompiler uses your compiler to process header files Set the INCLUDE environment variable to include the full path where the Sqlca.h and Sqlda.h ESQL/C header files are located and set the LIB environment variable to include the full path where the library files are located. There are several ways to accomplish this, including either: Issuing a SET statement at the command prompt, such as SET INCLUDE = C\Mssql17\DevTools\INCLUSE; %include%SET LIB = C\Mssql17\DevTools\LIB; %LIB%At the command prompt, first running Vcvar32.bat (in the \Program Files\Microsoft Visual Studio\VC98\Bin directory) and then running setenv.bat (in \Mssql17\DevTools\Samples\Esqlc directory). The nsqlprep precompiler automatically includes these header files in the C programs it creates. Do not explicitly include them (by using #include) in an Embedded SQL program. To enable communication with Microsoft® SQL Server™ 2000, ensure that an appropriate Net-Library is loaded or available on the path when precompiling with the /DB and /PASS options. For example, the Named Pipes Net-Library for the Microsoft Windows NT® operating system (Intel® platform) is Dbnmpntw.dll, and the Named Pipes Net-Library for the Microsoft MS-DOS® operating system is the Dbnmpipe.exe TSR.
c语言中倒是可以使用sql语句
如：
main()
{
exec sql include sqlca
exec sql begin declare section
char prname[20];
char productno[8];exec sql end declare sectionprintf("Input producno:");
scanf("%s",&producno);exec sql select prname
from product
where productno=:productno
into :prname;printf("Productname: %s\n",prname);exit();}
你在SQL 2000的帮助里找ESQL/C就可以找到。
有例程
我贴一点给你
int main(int argc, char *argv[])
{
LOGINREC* login; // login rec pointer
DBPROCESS* dbproc; // SQL Server connection structure pointer char cmd[150]; // command buffer
char server[30]; // server name buffer
int x = 1; // command line counter
STATUS retc; // return code const char* sqlversion; // pointer for version string *server = '\0'; // null start these two buffers
*cmd = '\0'; if(argc == 1) // if no server name, request it
{
printf("Enter Server Name: ");
gets(server);
}
else // else it was input as first arg
strcpy(server,argv[1]); if(argc < 2) // if no login id, request it
{
printf("Enter User Name: ");
gets(cmd);
}
else // otherwise it was input as second arg.
strcpy(cmd,argv[2]); // check to see if communications layer was loaded (DOS ONLY)
if((sqlversion = dbinit()) == (BYTE *)NULL)
{
// DOS TSR (DBNMPIPE.EXE) is not loaded, don't bother going any farther
printf("Error in DB-Library initialization, exiting\n");
return 1;
}
else
printf("DB-Library version: %s\n",sqlversion); // print dblib version dbsettime(30); // set timeouts to 30 seconds
// set error/msg handlers for this program
dbmsghandle((DBMSGHANDLE_PROC)msg_handler);
dberrhandle((DBERRHANDLE_PROC)err_handler); login = dblogin(); // get a login rec DBSETLUSER(login,cmd); // set login id
DBSETLHOST(login,"SQL EXAMPLE"); // set host name for sp_who
DBSETLVERSION(login, DBVER60);
// To use secure, or trusted, connection, uncomment the following line.
// DBSETLSECURE (login); // open connection to requested server. Pass null server name for local
// connection, if name not entered.
if((dbproc = dbopen(login,(*server) ? server : (char *)NULL)) == (DBPROCESS *)NULL)
{
// no one answered, so couldn't connect or error occurred
printf("Login failed\n");
return 1;
}
else
{
// loop on command input until quit or exit appears in first 4 bytes.
while((strnicmp(cmd,"quit",4) != 0) && (strnicmp(cmd,"exit",4)!=0))
{
printf("%d> ", x++); // print command prompt
gets(cmd); // get command
if(strnicmp(cmd,"go",2) == 0) // is it go
{
if(dbsqlexec(dbproc) == FAIL) // execute command
{
// problem occurred, just try another command
printf("Error in executing command batch!\n");
x = 1;
continue;
}
// command executed correctly, get results information
while((retc = dbresults(dbproc)) != NO_MORE_RESULTS)
{
if (retc == FAIL) // if error get out of loop
break; // headers and data could be printed here with only two
// function calls, dbprhead(dbproc), and dbprrow(dbproc),
// which would output the headers, and all the data to
// standard output. However, that isn't very informative
// toward understanding how this data is obtained and
// processed, so I do it the hard way, one column at a time. PrintHeaders(dbproc); // print header data // loop on each row, until all read
while((retc= dbnextrow(dbproc))!=NO_MORE_ROWS)
{
if(retc == FAIL) // if fail, then clear
{ // connection completely, just
dbcancel(dbproc); // in case.
break;
}
else
PrintRow(dbproc); // else print the current row
} if (DBCOUNT(dbproc) == 1L) // print the row count
printf("(1 row effected)\n");
else
printf("(%ld rows effected)\n",DBCOUNT(dbproc)); } // end while(dbresults()) x = 1; // reset command line counter
}
else
{
strcat(cmd," "); // go not detected, so put space
dbcmd(dbproc,cmd); // between each command and set in
} // dbproc. } // end while() dbclose(dbproc); // quit/exit input, close connection // print adios and exit.
printf("SQL Server Connection to %s closed, bye bye.\n",server);
return 0;
}
}/*
Before you run the nsqlprep precompiler, do the following:The nsqlprep precompiler uses your compiler to process header files Set the INCLUDE environment variable to include the full path where the Sqlca.h and Sqlda.h ESQL/C header files are located and set the LIB environment variable to include the full path where the library files are located. There are several ways to accomplish this, including either:
Issuing a SET statement at the command prompt, such as
SET INCLUDE = C\Mssql17\DevTools\INCLUSE; %include%SET LIB = C\Mssql17\DevTools\LIB; %LIB%At the command prompt, first running Vcvar32.bat (in the \Program Files\Microsoft Visual Studio\VC98\Bin directory) and then running setenv.bat (in \Mssql17\DevTools\Samples\Esqlc directory).
The nsqlprep precompiler automatically includes these header files in the C programs it creates. Do not explicitly include them (by using #include) in an Embedded SQL program. To enable communication with Microsoft® SQL Server™ 2000, ensure that an appropriate Net-Library is loaded or available on the path when precompiling with the /DB and /PASS options. For example, the Named Pipes Net-Library for the Microsoft Windows NT® operating system (Intel® platform) is Dbnmpntw.dll, and the Named Pipes Net-Library for the Microsoft MS-DOS® operating system is the Dbnmpipe.exe TSR.