Standalone Databases In the name of Allah Iman M.Gowhari

2  Introduction  Mylittlebase  SQLite  Other Solutions

3 Introduction  Embedded database.  The size of the database.  The database performance.  No end-user configuration required.

4 Mylittlebase  It is a little database component.  Function-call API for data access and management.  No need to link to any external server, DLLs.  Delphi / C++ / PHP

5 Mylittlebase #include ; #include "mlb2.h"; int main() { TMlb2* mlb; mlb = mlb->Create(); printf("%d\n", mlb->GetVersionNumber()); mlb->Destroy(); }

6 Mylittlebase  Initialization: Create, Destroy, Init, …  Fields: AddField, SetFieldType, SetFieldName, …  Rows: AddRow, GetCurrentRow, …  Navigation: GoFirst, GoNext, SeekData, …  Data management: GetData, SetData, …  File management: SaveToFile, LoadFromFile, …  Utils: MakeDistinct, SortByData, …

7 Mylittlebase #include #include "mlb2.h" void main() { TMlb2* mlb; mlb = mlb->Create(); mlb->LoadFromFile("data.csv"); mlb->GoFirst(); mlb->BeginSeek(MLB_FORWARD); while(mlb->SeekData("city", "LIKE", "Lond*")) { // insert here your action } mlb->EndSeek(); mlb->Destroy(); }

8 SQLite  It is a C library that implements an embeddable SQL database engine.  Implements most of SQL92.  Very simple C/C++ interface requires the use of only three functions and one opaque structure.  Two times faster than PostgreSQL and MySQL for many common operations.

9 SQLite int main() { sqlite *db; char *zErrMsg=0; int rc; db=sqlite_open("test.db", 0, &zErrMsg); if( db==0 ) { printf("Can't open database: %s\n", zErrMsg); return 1; } rc=sqlite_exec(db, "select * from tbl1", callback, 0, &zErrMsg); if( rc!=SQLITE_OK ){ printf("SQL error: %s\n", zErrMsg); } sqlite_close(db); return 0; }

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

11 SQLite  Accessing Data Without Using A Callback Function.  SQLite is typeless.  Python, Ruby, Perl, PHP, …

12 Other Solutions  Berkeley DB (  Ebase (  Gadfly (