Re: D Embedded Database v0.1 Released
On Wednesday, 1 June 2016 at 16:03:09 UTC, Piotrek wrote: On Wednesday, 1 June 2016 at 09:41:43 UTC, Stefan Koch wrote: Providing a nice query interface and so on. Do you mean any form of DSL (as it's SQL for SQLite)? I hope to get by without a DSL. And instead to something nice with UFCS.
Re: D Embedded Database v0.1 Released
On Wednesday, 1 June 2016 at 09:41:43 UTC, Stefan Koch wrote: Providing a nice query interface and so on. Do you mean any form of DSL (as it's SQL for SQLite)? Well I can see the non-realtime property being a factor for every database. And this is actually disadvantage of those databases ;) BTW1. Thank to the one who posted my reply on Reddit :) BTW2. Somebody on the Reddit suggested the LMDB is an equivalent of this DB. However I fear it's not true. To me, LMDB is a key/value storage backed by a memory-mapped file. However my DB will have more features including: - internal references (no data replication - aka database normalization) - indexes - transparent data compression and more :) Piotrek
Re: D Embedded Database v0.1 Released
On Wednesday, 1 June 2016 at 06:47:36 UTC, Suliman wrote: I still think that gitlab is bad place for DB. People prefer look sources at git or in Google. So DB should have site or git mirror to be popular. I don't think I fully understand what you mean. This is a D library not a separate product. Also what is the difference between git mirror and Gitlab? Piotrek
Re: D Embedded Database v0.1 Released
On Tuesday, 31 May 2016 at 20:31:26 UTC, Dmitri wrote: This might provide useful information if you're aiming for something like sqlite (hopefully not offtopic): https://github.com/cznic/ql It's an embeddable database engine in Go with goals similar to yours and at an advanced stage. The key difference is that ql is an SQL database and mine is not. I know it may sound scary, but I think an SQL layer is a burden when the D power is at hand (unless you need a DB running on a separate machine than the rest of the application). Piotrek
Re: D Embedded Database v0.1 Released
On Wednesday, 1 June 2016 at 05:45:49 UTC, Piotrek wrote: On Tuesday, 31 May 2016 at 22:08:00 UTC, Stefan Koch wrote: Nice effort. How would you like collaboration with the SQLite-D project. Thanks. Correct me if I'm wrong but SQLite-D is a compile time SQLite3 file reader. If so, I can predict not many common parts. Maybe the one would be a data deserialization component however I didn't check how it's done in SQLite-D. I intend for it to be a complete replacement for SQLite. Therefore I can see facing many common problems. Keeping B-Trees roughly balanced. Providing a nice query interface and so on. With has similar goals albeit file format compatible to SQLite. When I was selecting possible file format I was thinking about SQLite one. I am actually a fan of the SQLite project. However there are some shortcomings present in current SQlite3 format: - SQlite3 is not really a one file storage (i.e. journal file) - it gets fragmented very quickly (check out design goals for SQLite4) - it's overcomplicated and non deterministic with respect to real time software - it has unnecessary overhead because every column is actually a variant type Add to this the main goal of replacing SQL with D ranges+algorithms. This is SQLite-D's goal as well. In result it turned out it would be great to have an alternate format. Piotrek Well I can see the non-realtime property being a factor for every database.
Re: D Embedded Database v0.1 Released
On Wednesday, 1 June 2016 at 05:55:43 UTC, Piotrek wrote: On Wednesday, 1 June 2016 at 05:45:49 UTC, Piotrek wrote: BTW. Would someone be so kind and post the above paragraph on Reddit under a comment about Sqlite db. I'm not registered there. I mean this thread of course: https://www.reddit.com/r/programming/comments/4lwufi/d_embedded_database_v01_released/ Piotrek I still think that gitlab is bad place for DB. People prefer look sources at git or in Google. So DB should have site or git mirror to be popular.
Re: D Embedded Database v0.1 Released
On Wednesday, 1 June 2016 at 05:45:49 UTC, Piotrek wrote: BTW. Would someone be so kind and post the above paragraph on Reddit under a comment about Sqlite db. I'm not registered there. I mean this thread of course: https://www.reddit.com/r/programming/comments/4lwufi/d_embedded_database_v01_released/ Piotrek
Re: D Embedded Database v0.1 Released
On Tuesday, 31 May 2016 at 22:08:00 UTC, Stefan Koch wrote: Nice effort. How would you like collaboration with the SQLite-D project. Thanks. Correct me if I'm wrong but SQLite-D is a compile time SQLite3 file reader. If so, I can predict not many common parts. Maybe the one would be a data deserialization component however I didn't check how it's done in SQLite-D. With has similar goals albeit file format compatible to SQLite. When I was selecting possible file format I was thinking about SQLite one. I am actually a fan of the SQLite project. However there are some shortcomings present in current SQlite3 format: - SQlite3 is not really a one file storage (i.e. journal file) - it gets fragmented very quickly (check out design goals for SQLite4) - it's overcomplicated and non deterministic with respect to real time software - it has unnecessary overhead because every column is actually a variant type Add to this the main goal of replacing SQL with D ranges+algorithms. In result it turned out it would be great to have an alternate format. BTW. Would someone be so kind and post the above paragraph on Reddit under a comment about Sqlite db. I'm not registered there. Piotrek
Re: D Embedded Database v0.1 Released
On Saturday, 28 May 2016 at 14:08:18 UTC, Piotrek wrote: Short description A database engine for quick and easy integration into any D program. Full compatibility with D types and ranges. Design Goals (none is accomplished yet) - ACID - No external dependencies - Single file storage - Multithread support - Suitable for microcontrollers More info for interested at: Docs: https://gitlab.com/PiotrekDlang/DraftLib/blob/master/docs/database/index.md Code: https://gitlab.com/PiotrekDlang/DraftLib/tree/master/src The project is at its early stage of development. Piotrek Nice effort. How would you like collaboration with the SQLite-D project. With has similar goals albeit file format compatible to SQLite.
Re: D Embedded Database v0.1 Released
On Saturday, 28 May 2016 at 14:08:18 UTC, Piotrek wrote:
Short description
A database engine for quick and easy integration into any D
program. Full compatibility with D types and ranges.
Design Goals (none is accomplished yet)
- ACID
- No external dependencies
- Single file storage
- Multithread support
- Suitable for microcontrollers
Example code:
import draft.database;
import std.stdio;
void main(string[] args)
{
static struct Test
{
int a;
string s;
}
auto db = DataBase("testme.db");
auto collection =
db.collection!Test("collection_name",true);
collection.put(Test(1,"Hello DB"));
writeln(db.collection!Test("collection_name"));
}
More info for interested at:
Docs:
https://gitlab.com/PiotrekDlang/DraftLib/blob/master/docs/database/index.md
Code:
https://gitlab.com/PiotrekDlang/DraftLib/tree/master/src
The project is at its early stage of development.
Piotrek
This might provide useful information if you're aiming for
something like sqlite (hopefully not offtopic):
https://github.com/cznic/ql
It's an embeddable database engine in Go with goals similar to
yours and at an advanced stage.
regards,
dmitri.
D Embedded Database v0.1 Released
Short description
A database engine for quick and easy integration into any D
program. Full compatibility with D types and ranges.
Design Goals (none is accomplished yet)
- ACID
- No external dependencies
- Single file storage
- Multithread support
- Suitable for microcontrollers
Example code:
import draft.database;
import std.stdio;
void main(string[] args)
{
static struct Test
{
int a;
string s;
}
auto db = DataBase("testme.db");
auto collection =
db.collection!Test("collection_name",true);
collection.put(Test(1,"Hello DB"));
writeln(db.collection!Test("collection_name"));
}
More info for interested at:
Docs:
https://gitlab.com/PiotrekDlang/DraftLib/blob/master/docs/database/index.md
Code:
https://gitlab.com/PiotrekDlang/DraftLib/tree/master/src
The project is at its early stage of development.
Piotrek
