#learningsql результаты поиска
CTAS( create table as select) CTAS create a new table based on the result if an SQL Query. This means the query of CTAS has been executed already This is used to create a snapshot of the data That concludes day 12 of #learningSQL 😊
DAY 12 of #learningSQL 😊 Topics covered 1. Views 2. CTAs Views is one of the ways SQL handle complexities and optimize performance
Day 11 of #learningSQL 😊 Topic: COMMON TABLE EXPRESSION(CTE) CTE is another technique SQL handles complexity and optimizes performance CTE is a temporary named result set(virtual table) that can be used multiple times within a query to simplify and organize queries
Day 11 of #learningSQL 😊 Topic: COMMON TABLE EXPRESSION(CTE) CTE is another technique SQL handles complexity and optimizes performance CTE is a temporary named result set(virtual table) that can be used multiple times within a query to simplify and organize queries
Day 10 of #learningSQL 😊 Topic : SUBQUERY SUBQUERY is simply a query inside another query Subqueries are used to handle complexities and optimize the performance of SQL
Correlated Subqueries are queries that relies on the value from the main query Non correlated subsqueries are queries that can run independently from the main query That concludes the day 10 of #learningSQL 😊 See you tomorrow
Day 10 of #learningSQL 😊 Topic : SUBQUERY SUBQUERY is simply a query inside another query Subqueries are used to handle complexities and optimize the performance of SQL
Day 9 of #learningSQL 😊 Topic 1. The window value functions 2. SQL advanced techniques WINDOWS VALUE FUNTIONS The Value function is used to access and return a values from other rows
SQL Advanced Techniques This techniques are essential to optimize the performance of SQL They include : Subquery, Common Table expressions(CTE), views etc That concludes day 9 of #learningSQL 😊 See you tomorrow
Day 9 of #learningSQL 😊 Topic 1. The window value functions 2. SQL advanced techniques WINDOWS VALUE FUNTIONS The Value function is used to access and return a values from other rows
Day 8 of #learningSQL 😊 Topic(s) covered 1. WINDOWS RANKING FUNCTION The Ranking functions are used to assign ranks or values to rows of data. The window ranking function must make use of the ORDER BY clause
Use cases of the window Ranking functions - Top N analysis and Bottom N analysis - Generate unique ID - Identify duplicates - data segmentation That concludes day 8 of #learningSQL 😊 See you tomorrow
Day 8 of #learningSQL 😊 Topic(s) covered 1. WINDOWS RANKING FUNCTION The Ranking functions are used to assign ranks or values to rows of data. The window ranking function must make use of the ORDER BY clause
Day 7 of #learningSQL 😊 Topic(s) covered 1. WINDOWS function 2. Calculating Running and Rolling Totals 1. WINDOWS FUNCTION Also referred to as analytical functions. WINDOWS Function performs calculations (e.g aggregation) on a specific subset of data and return a value(s)
Day 7 of #learningSQL 😊 Topic(s) covered 1. WINDOWS function 2. Calculating Running and Rolling Totals 1. WINDOWS FUNCTION Also referred to as analytical functions. WINDOWS Function performs calculations (e.g aggregation) on a specific subset of data and return a value(s)
Day 6 of #learningSQL 😊 Today's Topic 1. CASE statement Case statements evaluates a list of conditions an d returns a value when the first condition is met
Day 6 of #learningSQL 😊 Today's Topic 1. CASE statement Case statements evaluates a list of conditions an d returns a value when the first condition is met
DAY 5 OF #learningSQL 😊 Topics covered 1. Date and Time functions 2. NULL functions 3. Data policies
3. use the default value "unknown" and avoid using NULL,empty string and blank spaces That concludes day 5 of #learningSQL 😊 See you tomorrow
DAY 5 OF #learningSQL 😊 Topics covered 1. Date and Time functions 2. NULL functions 3. Data policies
DAY 4 of #learningSQL 😊 Topics covered 1. LIKE operator 2. SQL functions 3. string functions
ROUND Function: to round up numbers ABS: To convert all numbers to an absolute number That concludes day 4 of #learningSQL 😊 See you tomorrow
DAY 4 of #learningSQL 😊 Topics covered 1. LIKE operator 2. SQL functions 3. string functions
Day 3 of #learningSQL 😊 Topics covered 1. Joining data 2. JOINS 3. SET OPERATORS Joining data SQL uses two operators to combine either rows or columns of two or more tables- JOIN OR SET OPERATORS
That concludes the end of day 3 of #learningSQL See you tomorrow 😊
Day 3 of #learningSQL 😊 Topics covered 1. Joining data 2. JOINS 3. SET OPERATORS Joining data SQL uses two operators to combine either rows or columns of two or more tables- JOIN OR SET OPERATORS
Day 2 of #learningSQL 😊 Topics covered - Deeper look into DDL and DML - SQL Query clauses - Order and execution order DDL(Data Definition Language) This defines the structure of the data. Uses commands like CREATE,ALTER,DROP.
✅ First-time buyers & inactive users This query helps businesses target customers for upselling! 🚀 What’s your favorite advanced SQL trick? Let’s discuss! 👇 #DataAnalytics #SQL #LearningSQL #100DaysOfData
🌟 Day 32 of SQL Learning Journey 🌟 Today, I tackled two exciting LeetCode problems, pushing deeper into SQL concepts: 1)Game Play Analysis IV 🎮 2)Unique Subjects by Each Teacher 📘 #SQL #LearningSQL #LeetCode #ProblemSolving #DailyLearning
Was bored and decided to work on a SQL task that's been on my laptop . #learningsql I created three tables for a library. One for books records, another for members records and the last for borrowing records, which contained foreign keys from books and members records.
Some nights it’s just me, my messy dataset, and ChatGPT whispering “we’re almost there.” This data analytics journey is teaching me more than just skills — it’s teaching me patience and power. #LearningSQL #DataAnalytics
Learned about data types, SQL commands, and how to write queries for databases and tables.#LearningSQL #DatabaseBasics
So, stay curious, stay patient, and trust the process. You got this💪 This is how my day is going💻 Working on a mini project in SQL👌 #My_data_journey #LearningSQL #ProgressAllTheWay✈️
🚨 Struggling with SQL questions? Use this simple mental model before you write a single line: 🧩 T.A.S.K. T = Tables A = Attributes (columns) S = Steps to filter/join/group K = Key logic (what are you calculating?) 🎯 Think before you SELECT. #LearningSQL #InterviewPrep
Day 3 of my 30-day SQL challenge! Today I delved into JOINS and learned how to combine data from multiple tables. Excited to see how this will simplify complex queries! 💻📊 #SQLChallenge #LearningSQL #DataScience #TechJourney
Writing a simple SELECT * FROM table feels good, But optimizing queries? That’s where the real thrill! If SQL was a person, it would be friend who always knows exactly where to find the best food (with a quick JOIN). Still a beginner, but loving every query ! #SQL #LearningSQL
Top 5 real-world use cases of the CASE statement in #SQLServer 🚀 Be in touch, @RakeshMen #SQLTips #LearningSQL #DataManipulation #Querying
Database, varchar, int, text, etc. These, and more, are the words I've added to my vocabulary. I just ran my first SQL series and the feeling is powerful. It felt just like unlocking a new language. PS: Peep the new program🤭 #LearningSQL #DataAnalytics #TechCrushHQ #TechJourney
𝗟𝗲𝗮𝗿𝗻𝗶𝗻𝗴 𝗦𝗤𝗟 𝗶𝗻 𝗮 𝗪𝗲𝗲𝗸𝗲𝗻𝗱: 𝗜𝘀 𝗜𝘁 𝗣𝗼𝘀𝘀𝗶𝗯𝗹𝗲? tinyurl.com/r7czjnwv #Learningsql #Shorttermsqlcourses #Sqlcourses #Coursesforlearningsql #Sql #AI #AINews #AnalyticsInsight #AnalyticsInsightMagazine
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