嵌入式数据库主要是Berkeley DB和sqlite，BDB功能很强可以应用于工业，但不是关系数据库，sqlite免费小巧且速度快。

1、下载源代码并编译安装
在http://www.sqlite.org/download.html下载sqlite-autoconf-3080100.tar.gz，解压缩后./configure ; make ; make install，则生成了sqlite3程序和500多k的libsqlite3.so.0.8.6库文件
其中源代码包括sqlite3.c和sqlite3.h，sqlite3.h在程序中需要用到

2、程序部署
将库文件libsqlite3.so.0.8.6拷贝到部署机即可

3、测试程序

#include <stdio.h>
#include <sqlite3.h>

static int callback(void *NotUsed,int argc,char **argv,char **azColName){
   int i;
   for(i=0; i<argc; i++){
     printf("%s = %s\n",azColName[i],argv[i] ? argv[i] : "NULL");
   }
   printf("\n");
   return 0;
}

int main(int argc,char **argv){
   sqlite3 *db;
   int rc;
   char *zErrMsg = 0;

//1.create or open database file
   rc = sqlite3_open("my.db",&db);
   if( rc ){
     fprintf(stderr,"Can't open database: %s\n",sqlite3_errmsg(db));
     sqlite3_close(db);
     exit(1);
   }
//2.create table
   rc = sqlite3_exec(db,"create table phonenumber(id int,name varchar(30));",NULL,&zErrMsg);
   if( rc!=sqlITE_OK ){
     fprintf(stderr,"sql error: %s\n",zErrMsg);
     sqlite3_free(zErrMsg);
   }

//3.insert data
  rc = sqlite3_exec(db,"insert into phonenumber values(1,'abc')",zErrMsg);
     sqlite3_free(zErrMsg);
   }

//4.select and show data

   sqlite3_exec(db,"select * from phonenumber",callback,zErrMsg);
     sqlite3_free(zErrMsg);
   }

   sqlite3_close(db);
   return 0;
}