SQL injection is a code injection technique that is capable of destroying your database. It is a code injection technique, used to attack data-driven applications, in which malicious SQL statements are inserted into an entry field for execution. (e.g. to dump the database contents to the attacker)
Continue reading “SQL Injection and Preventing them in your Golang app”
A transaction is a unit of work that you want to treat as “a whole.” It has to either happen in full or not at all. In Go lang, a transaction is essentially an object that reserves a connection to the database. You begin a transaction with a call to db.Begin() and close it with a commit() or rollback() method on the resulting Tx variable.
In the last post Updating/Deleting rows with Go, we learned to manipulate rows in PostgreSQL database in Go project using database/sql package that ships with Go, along with github.com/lib/pq Postgres driver. In this post, we’ll learn how to query rows i.e. SELECT
In the previous post Inserting records into a database with Go, we learned how to insert rows to PostgreSQL database from Go project using database/sql package that ships with Go, along with github.com/lib/pq Postgres driver. In this post, we’ll learn the remaining two DML (data manipulation language) operations i.e. UPDATE and DELETE.
In the previous post Connecting to PostgreSQL from Go lang project, we learned how to connect to the PostgreSQL database from Go lang project using database/sql package that ships with Go, along with github.com/lib/pq Postgres driver. In this post, we’ll learn how to insert data (rows) in a PostgreSQL table.
The Go programming language, sometimes referred to as Go lang, is making strong gains in popularity. Chances are if you are a Go developer, you will have to interact with SQL at some point in your project. This blog post will show how to connect to a PostgreSQL database from Go using database/sql package.
Download link: https://marketplace.visualstudio.com/items?itemName=ms-ossdata.vscode-postgresql
Ctrl + Shift + P (On mac use ⌘ + Shift + P)Search and select PostgreSQL: New Query
In the command palette, select Create Connection Profile. Follow the prompts to enter your Postgres instance hostname, database, username, and password.
You are now connected to your Postgres database. You can confirm this via the Status Bar (the ribbon at the bottom of the VS Code window). It will show your connected hostname, database, and user.
Now, let’s try to query database.
Type a query ex. SELECT * FROM pg_stat_activity;
Right-click, select Execute Query / keyboard shortcut [⌘M ⌘R] and the results will show in a new window.
6. You can also save the query results as JSON, CSV or Excel.
So now, you can seamlessly code for PostgreSQL from Microsoft VS Code without switching screens, leverage powerful intellisense and execute queries.
Enjoy Coding!
IMP NOTE: Result windows from queries won´t show up again after being closed. This is bug with current version and is being worked by dev team. Workaround is either to keep the result window Open Or close / re-open the VS code window.
Azure Data Studio (formerly SQL Operations Studio) is a free Cross-Platform DB management tool for Windows, macOS and Linux. Staying true to their promise of offering a unified data management experience for developers, Microsoft recently released PostgreSQL Extension for Azure Data Studio
Continue reading “Azure Data Studio PostgreSQL Extension – Custom insight dashboard”
This is Part-III for my series on Postgres Table partitioning. I’ll encourage you to also read Part-I and II on this topic.
Continue reading “PostgreSQL Table Partitioning Part III – Partition Elimination”Starting Postgres 10.x and onward, it is now possible to create declarative partitions.
In my previous post ‘postgresql-table-partitioning-part-i-implementation-using-inheritance‘, I discussed about implementing Partitioning in PostgreSQL using ‘Inheritance’. Up until PostgreSQL 9, it was only way to partition tables in PostgreSQL. It was simple to implement, however had some limitations like:
Continue reading “PostgreSQL Table Partitioning Part II – Declarative Partitioning”
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