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https://github.com/mrdulin/nodejs-pg-knex-samples
Learning PostgreSQL, knex.js by examples.
https://github.com/mrdulin/nodejs-pg-knex-samples
knex knexjs knexjswithpostgresql nodejs pgsql postgresql postgresql-database sql
Last synced: about 14 hours ago
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Learning PostgreSQL, knex.js by examples.
- Host: GitHub
- URL: https://github.com/mrdulin/nodejs-pg-knex-samples
- Owner: mrdulin
- License: mit
- Created: 2018-11-14T07:19:28.000Z (almost 6 years ago)
- Default Branch: master
- Last Pushed: 2022-12-30T02:56:20.000Z (over 1 year ago)
- Last Synced: 2024-09-19T14:08:10.912Z (6 days ago)
- Topics: knex, knexjs, knexjswithpostgresql, nodejs, pgsql, postgresql, postgresql-database, sql
- Language: TypeScript
- Size: 2.35 MB
- Stars: 5
- Watchers: 3
- Forks: 0
- Open Issues: 4
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# nodejs-pg-knex-samples
Learning PostgreSQL, knex.js by examples.
## Usage
```txt
SQL_HOST=127.0.0.1
SQL_DATABASE=nodejs-pg-knex-samples
SQL_USER=sampleadmin
SQL_PORT=5431
SQL_PASSWORD=sampleadmin
SQL_SSL=false
```
start `pg` docker container
```bash
docker-compose up -d
```
access docker container
```bash
docker exec -it bash
```
connect `postgres` using `psql`
```bash
psql -U sampleadmin nodejs-pg-knex-samples
```
list all relations
```bahs
nodejs-pg-knex-samples-# \d
List of relations
Schema | Name | Type | Owner
--------+--------------------------------+----------+-------------
public | books | table | sampleadmin
public | books_book_id_seq | sequence | sampleadmin
public | knex_migrations | table | sampleadmin
public | knex_migrations_id_seq | sequence | sampleadmin
public | knex_migrations_lock | table | sampleadmin
public | knex_migrations_lock_index_seq | sequence | sampleadmin
(6 rows)
```
Test example:
```bash
cd src/window-function
```
create migration files
```bash
☁ window-function [master] ⚡ npx knex migrate:make init --knexfile ./knexfile.ts
```
create seed files
```bash
☁ window-function [master] ⚡ npx knex seed:make initialize_db --knexfile ./knexfile.ts -x ts
```
migrate database
```bash
window-function [master] ⚡ npx knex migrate:latest
```
seed database
```bash
☁ window-function [master] ⚡ npx knex seed:run
```
check postgresql database files
```bash
root@f29a16a93352:/# ls /db-data/pgdata/
base pg_clog pg_dynshmem pg_ident.conf pg_multixact pg_replslot pg_snapshots pg_stat_tmp pg_tblspc PG_VERSION postgresql.auto.conf postmaster.opts
global pg_commit_ts pg_hba.conf pg_logical pg_notify pg_serial pg_stat pg_subtrans pg_twophase pg_xlog postgresql.conf postmaster.pid
```
## pgbench
initialize testing datas
```bash
root@f29a16a93352:/# pgbench -i -s 2 -F 80 -U sampleadmin -d nodejs-pg-knex-samples
NOTICE: table "pgbench_history" does not exist, skipping
NOTICE: table "pgbench_tellers" does not exist, skipping
NOTICE: table "pgbench_accounts" does not exist, skipping
NOTICE: table "pgbench_branches" does not exist, skipping
creating tables...
100000 of 200000 tuples (50%) done (elapsed 2.29 s, remaining 2.29 s)
200000 of 200000 tuples (100%) done (elapsed 4.90 s, remaining 0.00 s)
vacuum...
set primary keys...
done.
```
## knex workflow
[knex workflow](./src/seed-with-json-data-cli/readme.md)
## references
- http://www.postgresqltutorial.com/
- http://www.postgres.cn/docs/9.6/
- https://github.com/tgriesser/knex
- http://knexjs.org/