Neo4j and Cypher: Using MERGE with Schema Indexes/Constraints

I wrote about cypher’s MERGE function a couple of weeks ago, and over the last few days, I’ve been exploring how it works with schema indexes and unique constraints. An Exciting Time to Be a Developer There is so much that could be said about the merging of Neo4j and Cypher right now, but it … Read more

r – How to join (merge) data frames (inner, outer, left, right)

For the case of a left join with a 0..*:0..1 cardinality or a right join with a 0..1:0..* cardinality it is possible to assign in-place the unilateral columns from the joiner (the 0..1 table) directly onto the joinee (the 0..* table), and thereby avoiding the creation of an entirely new table of data. This requires … Read more

git merge – What is the proper way of programmatically checking if Git branches can be merged?

git merge-tree mentioned in lbergnehr’s answer is all the more valid with With Git 2.38 (Q3 2022), as “git merge-tree“(man) A new mode where it takes two learned commits and computes a tree that would result in the merge commit, if the histories leading to these two commits were to be merged. You can quickly … Read more

We Automated Resolving Merge Conflicts, and Here’s How | by Abhishek KM | May, 2022

git pull a day keeps the conflicts away Photo by David Ballew on Unsplash In the world of Open-source, maintaining or contributing to an active repository is not exactly as straightforward as it seems and a merge conflict is something everybody has to deal with but nobody likes it. B-u-t at Felvin, w _e- _l-o-v-e- … Read more

merge two xml files xslt 3 based on ite value of common d element

<breakfast_menu> <food> <name>Belgian Waffles</name> <id>$5</id> <description>Two of our famous Belgian Waffles with plenty of real maple syrup</description> <calories>650</calories> </food> <food> <name>Strawberry Belgian Waffles</name> <id>7</id> <description>Light Belgian waffles covered with strawberries and whipped cream</description> <calories>900</calories> </food> <food> <name>Berry-Berry Belgian Waffles</name> <id>8</id> <description>Light Belgian waffles covered with an assortment of fresh berries and whipped cream</description> <calories>900</calories> </food> … Read more

android – When I Enable Slider in Adapter Last position not showing (SLIDER_VIEW merge with ITEM_VIEW )

Need to Show Slider With a missing fisrt position of ITEM_VIEW Check IMAGE 1 When Slider Enabled Don’t Showing first position of ITEM_VIEW (Issue is SLIDER_VIEW position merge with ITEM_VIEW position). Need to show ITEM_VIEW missing first position With Slider Check IMAGE 2 When Slider Not Enabled ITEM_VIEW first position Showing public class WallpapersAdapter extends … Read more

python – How do I merge two dictionaries in a single expression?

How can I merge two Python dictionaries in a single expression? For dictionaries x and ytheir shallowly-merged dictionary z takes values ​​from yreplacing those from x. In Python 3.9.0 or greater (released 17 October 2020, PEP-584discussed here): z = x | y In Python 3.5 or greater: z = {**x, **y} In Python 2, (or … Read more

Five Tips to Fasten Skewed Joins in Apache Spark

Joins are one of the most fundamental transformations in a typical data processing routine. A Join operator makes it possible to correlate, enrich and filter across two input datasets. The two input datasets are generally classified as a left dataset and a right dataset based on their placement with respect to the Join clause/operator. Fundamentally, … Read more

powershell – Merge xml files and delete duplicates when certain line field value already exists

I have two XML files of the same structure, each with over 100,000 entries and would like to merge them. File1 shall be my source file and I only would like to add entries from File2 when the value of field VATRegistrationNumber does not already exists in File1. Lines with an empty VATRegistrationNumber still need … Read more