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@azimutt/connector-sqlserver

v0.1.4

Published

Connect to SQL Server, extract schema, run analysis and queries

Downloads

246

Readme

SQL Server connector

This library allows to connect to SQL Server, extract its schema and more...

It lists all schemas, tables, columns, relations and types and format them in a JSON Schema.

This library is made by Azimutt to allow people to explore their SQL Server database. It's accessible through the Desktop app (soon), the CLI or even the website using the gateway server.

Feel free to use it and even submit PR to improve it:

Publish

  • update package.json version
  • update lib versions (pnpm -w run update + manual)
  • test with pnpm run dry-publish and check azimutt-connector-sqlserver-x.y.z.tgz content
  • launch pnpm publish --no-git-checks --access public

View it on npm.

Dev

If you need to develop on multiple libs at the same time (ex: want to update a connector and try it through the CLI), depend on local libs but publish & revert before commit.

  • Depend on a local lib: pnpm add <lib>, ex: pnpm add @azimutt/models
  • "Publish" lib locally by building it: pnpm run build

Local Setup

You can use the SQL Server Official image:

docker run --name mssql_sample -p 1433:1433 -e ACCEPT_EULA=Y -e MSSQL_SA_PASSWORD=azimutt_42 -e MSSQL_PID=Evaluation mcr.microsoft.com/mssql/server:2022-latest

Connect with host (localhost), port (1433), user (sa) and pass (azimutt_42) or using sqlserver://sa:azimutt_42@localhost:1433/master or Server=localhost,1433;User Id=sa;Password=azimutt_42;Database=master, then add some tables and data:

CREATE TABLE users (
    id              BIGINT PRIMARY KEY IDENTITY (1,1),
    name            VARCHAR(50)        NOT NULL,
    role            VARCHAR(10)        NOT NULL,
    email           VARCHAR(255)       NOT NULL,
    email_confirmed BIT      DEFAULT 0 NOT NULL,
    settings        NVARCHAR(MAX) CHECK (ISJSON([settings]) = 1),
    created_at      DATETIME DEFAULT GETDATE(),
    CONSTRAINT users_lower_email_chk CHECK (email = LOWER(email)),
    CHECK (name <> email)
);
EXEC sp_addextendedproperty 'MS_Description', 'List all users', 'SCHEMA', 'dbo', 'TABLE', 'users';
EXEC sp_addextendedproperty 'MS_Description', 'The user name', 'SCHEMA', 'dbo', 'TABLE', 'users', 'COLUMN', 'name';
CREATE UNIQUE INDEX users_email_uniq ON users (email);
CREATE INDEX users_role_idx ON users (role);
ALTER TABLE users ADD vPlan AS JSON_VALUE(settings, '$.plan.name');
CREATE INDEX users_plan_idx ON users (vPlan);
ALTER TABLE users ADD vColor AS JSON_VALUE(settings, '$.color');
CREATE INDEX users_full_idx ON users (name, email, vPlan, vColor);

CREATE VIEW admins AS SELECT id, name, email FROM users WHERE role = 'admin';
EXEC sp_addextendedproperty 'MS_Description', 'Only admins', 'SCHEMA', 'dbo', 'VIEW', 'admins';

CREATE VIEW guests AS SELECT id, name, email FROM users WHERE role = 'guest';
EXEC sp_addextendedproperty 'MS_Description', 'Only guests', 'SCHEMA', 'dbo', 'VIEW', 'guests';


CREATE TABLE posts (
    id         BIGINT PRIMARY KEY IDENTITY (1,1),
    title      VARCHAR(50) NOT NULL,
    content    NVARCHAR(MAX),
    created_at DATETIME DEFAULT GETDATE(),
    created_by BIGINT      NOT NULL,
    CONSTRAINT posts_created_by_fk FOREIGN KEY (created_by) REFERENCES users (id)
);

CREATE TABLE post_authors (
    post_id BIGINT,
    user_id BIGINT,
    CONSTRAINT post_authors_pk PRIMARY KEY (post_id, user_id),
    CONSTRAINT post_authors_post_id_fk FOREIGN KEY (post_id) REFERENCES posts (id),
    CONSTRAINT post_authors_user_id_fk FOREIGN KEY (user_id) REFERENCES users (id)
);

CREATE TABLE post_author_details (
    detail_post_id BIGINT,
    detail_user_id BIGINT,
    role           VARCHAR(10) NOT NULL,
    CONSTRAINT post_author_details_pk PRIMARY KEY (detail_post_id, detail_user_id),
    CONSTRAINT post_author_details_post_user_fk FOREIGN KEY (detail_post_id, detail_user_id) REFERENCES post_authors (post_id, user_id)
);

CREATE TABLE ratings (
    user_id   BIGINT      NOT NULL,
    item_kind VARCHAR(50) NOT NULL,
    item_id   BIGINT      NOT NULL,
    rating    INT         NOT NULL CHECK (0 <= rating AND rating <= 5),
    review    VARCHAR(255),
    CONSTRAINT ratings_pk PRIMARY KEY (user_id, item_kind, item_id),
    CONSTRAINT ratings_user_id_fk FOREIGN KEY (user_id) REFERENCES users (id)
);


-- Insert data
INSERT INTO users (name, role, email, settings) VALUES (N'Loïc', 'admin', '[email protected]', N'{"color": "red", "plan": {"id": 1, "name": "pro"}}');
INSERT INTO users (name, role, email, settings) VALUES ('Jean', 'guest', '[email protected]', null);
INSERT INTO users (name, role, email, settings) VALUES ('Luc', 'guest', '[email protected]', null);
INSERT INTO posts (title, content, created_by) VALUES ('SQL Server connector', null, 1);
INSERT INTO post_authors (post_id, user_id) VALUES (1, 1);
INSERT INTO post_authors (post_id, user_id) VALUES (1, 2);
INSERT INTO post_author_details (detail_post_id, detail_user_id, role) VALUES (1, 1, 'author');
INSERT INTO ratings (user_id, item_kind, item_id, rating) VALUES (3, 'posts', 1, 4);
INSERT INTO ratings (user_id, item_kind, item_id, rating) VALUES (3, 'users', 1, 5);

Remove everything with:

DROP VIEW guests;
DROP VIEW admins;
DROP TABLE ratings;
DROP TABLE post_author_details;
DROP TABLE post_authors;
DROP TABLE posts;
DROP TABLE users;

Cloud Setup

  • Go on https://www.microsoft.com/fr-fr/sql-server/sql-server-downloads and click on "Start"
  • Build your database url, like: sqlserver://<user>:<pass>@<host>:<port>;database=<db> or Server=<host>,<port>;Database=<db>;User Id=<user>;Password=<pass>
  • Load data in your instance, if you don't have, you can use schemas from Prisma schema examples