SQL

Hey everyone! I’m currently working on some SQL queries for a project, and I’ve hit a bit of a roadblock. I’m trying to construct a query that needs to filter results based on several conditions, but I’m not entirely sure ...Read more

Hey everyone! 👋 I’m currently working on a project that involves SQL Server, and I could really use some help. Can someone provide a clear example of how to perform an insert operation? Specifically, I’m looking for a simple demonstration with ...Read more

Hey everyone! I hope you’re all doing well. I’m currently working on a project where I need to execute multiple SQL statements in a single command using Oracle’s PL/SQL. The challenge I’m facing is figuring out how to run different ...Read more

Hey everyone! I’m currently working on a project where I need to analyze our database, and I’ve run into a bit of a stumbling block. I need to identify all the tables that contain a specific column name—let’s say it’s “user_id”. ...Read more

Hey everyone! I’m currently working on a project where I need to filter some data from a SQL database. Specifically, I want to exclude certain patterns from my results using the `NOT LIKE` clause, but I’m having a little trouble ...Read more

Hey everyone! I’ve been diving into SQL Server and came across the NOLOCK hint, but I’m a bit puzzled about its practical applications. Can anyone explain what the NOLOCK hint actually does and in what scenarios it’s usually used? I’d ...Read more

Hey everyone! I’ve been working on a project that uses an SQL database, and I’m running into a bit of a challenge. I hope you can help me out! I need to add a new column to an existing table to ...Read more

Hey everyone! I’m currently working on a project in SQL Server and I’ve hit a bit of a snag. I need to use a for loop in my queries, but I’m not quite sure how to write it correctly. Can anyone ...Read more

Hey everyone, I’m currently working on a project where I need to optimize the performance of querying a MySQL database that has a phone number column. One challenge I’m facing is that users often input phone numbers in various formats, such ...Read more

Hey everyone! I’m diving into some SQL work, and I’m stuck on something that’s been bugging me. I have a Common Table Expression (CTE) that generates a set of results, and I’m wondering how I can take those results and ...Read more