cross apply

SQLServerCentral Article
★ ★ ★ ★ ★ ★ ★ ★ ★ ★

(10)

You rated this post out of 5. Change rating

2022-07-13

35,680 reads

Technical Article

Function and Queries to Convert Hierarchical Adjacency to Nested Json Arrays

  • Script

This script converts hierarchical adjacency into nested json rows which contain the recursive "downlines" of each node.  The table-valued function treats each row in the original adjacency as the root node in a recursive common table expression. 

★ ★ ★ ★ ★ ★ ★ ★ ★ ★

You rated this post out of 5. Change rating

2019-11-24

990 reads

Technical Article

Function and Queries to Convert Hierarchical Adjacency to Nested Json Arrays

  • Script

This script converts hierarchical adjacency into nested json rows which contain the recursive "downlines" of each node.  The table-valued function treats each row in the original adjacency as the root node in a recursive common table expression. 

★ ★ ★ ★ ★ ★ ★ ★ ★ ★

You rated this post out of 5. Change rating

2019-11-12 (first published: )

2,205 reads

SQLServerCentral Article

Parse Data from a Field Containing Multiple Values using CROSS APPLY

  • Article

It is possible for a field in a character-delimited text file to contain a list of further-delimited values instead of the customary single value. This article demonstrates how to load such a file into a staging table, then use a CROSS APPLY query to parse the list of values into a related table.

★ ★ ★ ★ ★ ★ ★ ★ ★ ★

(15)

You rated this post out of 5. Change rating

2019-06-07 (first published: )

13,375 reads

Blogs

The #MS_DatabaseConnector## Role: #SQLNewBlogger

By

I had seen these roles in various instances, but never dug into the new...

Asking for Help Isn’t a Weakness

By

During COVID, I attended training on software/enterprise architecture given by Mark Richards. One of...

The Proof of the Backup Is in the Pudding

By

For me, the objective is straightforward: have a backup strategy that is reliable, understandable,...

Read the latest Blogs

Forums

Access + ODBC Driver 18 + SQL Server 2025: ~150–250 ms per request

By Bruno De Grauwe

Has anyone encountered recurring request latency when using Microsoft Access with SQL Server 2025...

The ##MS_DatabaseConnector## User

By Steve Jones - SSC Editor

Comments posted to this topic are about the item The ##MS_DatabaseConnector## User

Planning for Change

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Planning for Change

Visit the forum

Question of the Day

The ##MS_DatabaseConnector## User

On SQL Server 2025, I run this code as a sysadmin:

CREATE LOGIN Demo WITH PASSWORD = 'Demo1234567'
GO
ALTER SERVER ROLE ##MS_DatabaseConnector## ADD MEMBER Demo
GO
I then login as Demo and run this:
USE sandbox
go
SELECT CURRENT_USER
What is returned?

See possible answers