By Sharanmeet Singh • September 14, 2025
Hidden spaces and characters often cause errors. LEN, TRIM, and CLEAN help fix them.
ExcelLENTRIMCLEANText Functions
QueryBoss Blog
Insights, tips, and news about AI formula generation, database queries, and productivity tools.
By Sharanmeet Singh • September 14, 2025
SUMPRODUCT is powerful for conditional sums and weighted averages, but many ignore it.
ExcelSUMPRODUCTWeighted AverageFormulas
Making Search Smarter with Analyzers
Full-Text Search with Analyzers in Elasticsearch
Standard, custom, and language analyzers explained
By Sharanmeet Singh • September 14, 2025
Analyzers break down text into tokens. Choosing the right analyzer makes or breaks your search relevance.
ElasticsearchOpenSearchAnalyzersFull-Text Search
Understanding Field Mappings
Elasticsearch Mappings & Dynamic Fields
Dynamic vs explicit mappings and why it matters
By Sharanmeet Singh • September 14, 2025
Mappings define how documents are indexed. Relying too much on dynamic mapping can cause major problems later.
ElasticsearchOpenSearchMappingsDynamic Fields
Difference Between Filter and Query
Elasticsearch Filtering vs Query Context
Boosted queries vs cached filters
By Sharanmeet Singh • September 14, 2025
Filters are fast and cached, while queries score documents. Mixing them up leads to wrong results or slow searches.
ElasticsearchOpenSearchFilterQuery ContextPerformance
Powerful Data Summaries
Elasticsearch Aggregations – Terms & Date Histogram
Grouping and summarizing data with terms and date histograms
By Sharanmeet Singh • September 14, 2025
Aggregations turn Elasticsearch into an analytics engine. Terms and Date Histograms are the most commonly used but often misapplied.
ElasticsearchOpenSearchAggregationsAnalytics
Understanding Match and Term Queries
Elasticsearch Match vs Term Query
When to use full-text match vs exact term filters
By Sharanmeet Singh • September 14, 2025
Match queries analyze text, while term queries look for exact values. Many developers misuse them—let’s clear it up.
ElasticsearchOpenSearchMatchTermSearch Queries
By Sharanmeet Singh • September 14, 2025
NULLs in SQL behave differently from normal values. Learn the right way to check them.
SQLNULLIS NULLCOALESCE
By Sharanmeet Singh • September 14, 2025
Window functions like ROW_NUMBER and RANK are powerful tools for analytics queries.
SQLWindow FunctionsROW_NUMBERRANK
Using CTEs in SQL
SQL Common Table Expressions (CTEs) – Simplify Complex Queries
Make queries readable with WITH
By Sharanmeet Singh • September 14, 2025
CTEs let you break down complex queries into smaller, more readable parts. Here’s how to use them.
SQLCTEWITH Clause
Grouping and Filtering Aggregates
SQL GROUP BY with HAVING Explained
Why HAVING is different from WHERE
By Sharanmeet Singh • September 14, 2025
GROUP BY is used to aggregate rows, and HAVING lets you filter those groups. Learn how they work together.
SQLGROUP BYHAVINGAggregation
Understanding SQL Joins
SQL INNER JOIN vs LEFT JOIN – The Key Difference
When to use INNER JOIN vs LEFT JOIN
By Sharanmeet Singh • September 14, 2025
INNER JOIN and LEFT JOIN are among the most used SQL queries but are often misunderstood. Learn the difference with examples.
SQLJOININNER JOINLEFT JOIN
Choosing the Right Data Model
MongoDB Schema Design – Embed or Reference?
When should you embed documents vs reference them?
By Sharanmeet Singh • September 14, 2025
One of the hardest MongoDB design decisions: embed or reference. Here’s how to decide.
MongoDBSchema DesignBest Practices
Common Pitfalls with Indexes
MongoDB Indexing Mistakes to Avoid
Indexes speed up queries, but can backfire if used wrong
By Sharanmeet Singh • September 14, 2025
Many MongoDB users misuse indexes. Learn the common mistakes and how to fix them.
MongoDBIndexingPerformance
Grouping Documents with $group
MongoDB $group – Summarizing Data
How to sum, count, and average data in MongoDB
By Sharanmeet Singh • September 14, 2025
Learn how to use $group for aggregations like SUM, COUNT, and AVG in MongoDB.
MongoDBAggregation$group
By Sharanmeet Singh • September 14, 2025
Joins in MongoDB are done using $lookup. Here’s how it works with examples.
MongoDB$lookupJoins
Filtering vs Shaping Documents
MongoDB $match vs $project – When to Use Which?
Two key aggregation stages that beginners often confuse
By Sharanmeet Singh • September 14, 2025
Learn the difference between filtering data with $match and shaping output with $project in MongoDB.
MongoDBAggregation$match$project
Fixing Excel’s Text-Number Confusion
Excel TEXT vs VALUE – Why Your Numbers Don’t Add Up
One of the most common Excel errors is numbers stored as text.
By Sharanmeet Singh • September 14, 2025
Have you seen numbers in Excel that won’t sum? They might be stored as text. Learn how TEXT and VALUE can save you.
ExcelTEXTVALUEData Cleaning
How to Use IF with AND & OR
Mastering IF with AND/OR in Excel
Most people overcomplicate IF statements—here’s the clean way.
By Sharanmeet Singh • September 14, 2025
Combining IF with AND/OR in Excel can be tricky. This guide shows simple patterns for everyday use cases.
ExcelIFANDORLogic
Understanding VLOOKUP and INDEX MATCH
Excel VLOOKUP vs INDEX MATCH – Which One Should You Use?
Why INDEX MATCH is often better than VLOOKUP
By Sharanmeet Singh • September 14, 2025
VLOOKUP is one of the most used Excel formulas, but it often breaks in real-world use. Learn when to use INDEX MATCH instead.
ExcelVLOOKUPINDEX MATCHXLOOKUP