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Master SQL with LearnSQLcom’s Comprehensive Learning Track

SQL from A to Z Learning Track: Everything You Need to Know

Imagine working with large volumes of data without any way to organize them efficiently or extract the insights you need. It would be like trying to find a needle in a haystack! This is where SQL, or Structured Query Language, comes to the rescue by providing a standardized way to manage, manipulate, and analyze data.

In this article, we will explore the SQL from A to Z Learning Track in detail, covering everything from its description to the duration, and who should take it.

Description of SQL

SQL, the abbreviation for Structured Query Language, is a programming language that helps in managing and manipulating structured data stored in relational databases. It is the most widely used relational database language for managing and querying data.

SQL does not just help you manage the data, but it also provides practical assistance for data manipulation, transaction processing, and complex queries. What is the SQL from A to Z Learning Track?

SQL from A to Z Learning Track is a comprehensive SQL learning path provided by LearnSQL.com. The program is designed for data analysts, data scientists, IT professionals, database administrators, computer science students, and especially for complete beginners.

This multi-faceted learning track covers everything from SQL basics to the advanced features.

Courses in the SQL from A to Z Learning Track

The SQL from A to Z Learning Track is an extensive course that includes different modules. Each module is designed to help you learn different aspects of SQL.

Below are the details of the prime courses included in this learning track. SQL Basics: SQL Basics is the first course in the learning track that introduces SQL and its fundamentals to complete beginners.

This course covers SQL statements, including SELECT, FROM, WHERE, ORDER BY, and LIMIT. Insert, Update, Delete in SQL: This course explains how to modify and manipulate data using SQL statements like INSERT, UPDATE, and DELETE.

Standard SQL Functions: The

Standard SQL Functions course introduces SQL functions, including string functions, date and time functions, numeric functions, and aggregate functions. Basic SQL Reports: Basic SQL Reports guide on generating basic reports using SQL and how to group data.

Window Functions:

Window Functions course covers advanced SQL, including window functions and how they work.

Recursive Queries: This course deep dives into the Recursive queries and covers recursive queries, CTEs, and how to overcome the limitations of flat tables. GROUP BY Extensions: The GROUP BY Extensions course covers the advanced features of GROUP BY, including ROLLUP, CUBE, and GROUPING SETS.

Who Should Take SQL From A to Z Learning Track? The SQL from A to Z Learning Track is specifically designed for complete beginners who want to learn SQL from basics to advanced levels.

Apart from beginners, data analysts, data scientists, IT professionals, and database administrators can benefit from this course as it covers all the essential features of SQL. Additionally, computer science students who want to start their career as a Database Administrator, SQL Developer, or Data Analyst can also opt for the SQL from A to Z Learning Track.

Duration of the SQL From A to Z Learning Track

The SQL from A to Z Learning Track is a comprehensive course that can take up to three months to complete. However, it is possible to complete the track within two weeks if you devote four hours a day.

The learning track takes approximately 84 hours to complete, including all the modules.

In conclusion, the SQL from A to Z Learning Track is an all-in-one program that includes everything you need to know about SQL, from the basics to the advanced levels.

The course is designed for beginners who want to boost their career in the field of data management and analysis. Not only does this course offer theoretical knowledge, but it also provides practical experience by using examples throughout the course.

Give it a shot and see if it’s a good fit for you!

SQL is a powerful tool for managing and manipulating data stored in relational databases. There are several features of SQL that allow users to perform different operations on their data.

This article takes a closer look at two courses in the SQL from A to Z Learning Track: Insert, Update, and Delete Data in SQL and

Standard SQL Functions. Insert, Update, and Delete Data in SQL

The Insert, Update, and Delete Data in SQL course is a crucial part of the SQL from A to Z Learning Track.

This course covers the fundamental aspects of SQL by providing detailed information on how to INSERT, UPDATE, and DELETE data in SQL.

Adding Data to Relational Databases

The first topic covered in the course is the process of adding data to a relational database. The INSERT statement is a system that helps in adding data to a table in the database.

The course teaches how to add data to tables by using the INSERT statement. It begins by demonstrating how to add data to a table that does not contain a primary key and then moves to tables that contain primary keys as well.

Modifying Data in Relational Databases

Modifying data in a relational database is another crucial aspect covered in the course. The UPDATE statement helps in modifying the data already present in a table.

With this statement, users can change the information in a table. This course teaches how to use the UPDATE statement to modify data in a table.

Removing Data from Relational Databases

The last topic covered in the course is removing data from the tables. The DELETE statement helps remove data from a table in the database.

The course explains how to use the DELETE statement to remove data and how it works. Besides, this course covers the fundamental concepts of primary and foreign keys.

It also shows how these keys could be used in SELECT statements for retrieving data from multiple tables.

Standard SQL Functions

SQL is an amazing tool that offers advanced features and a wide range of functions designed to help users manage and manipulate their data. However, when it comes to intermediate SQL, most people think of it as just the standard queries joining tables and filtering rows.

The

Standard SQL Functions course provides an in-depth knowledge of intermediate-level SQL, concentrating on the various functions provided by SQL.

Aggregate Functions

Aggregate functions are used to perform operations on a set of values and returns a single value as output. COUNT, SUM, MAX, and MIN are the most commonly used aggregate functions.

This course teaches how to use these functions and how they are applied to data present in a database table.

Scalar Functions

Scalar functions are used to perform operations on a single piece of data present in a table, like trimming whitespace or returning a portion of a string. This course shows examples of how to use scalar functions, such as UPPER, LOWER, and SUBSTR.

Date and Time Functions

Date and time data types are important data types when working with time-based data. The

Standard SQL Functions course covers features of the date and time functions that SQL has to offer, including how to format dates, add or subtract days, and get the day of the week for any date.

String Functions

String functions are used to manipulate character-based data types, such as manipulate strings, concatenate, and search for substrings. This course covers several common string functions, including CONCAT, TRIM, and LENGTH.

Conclusion

In conclusion, SQL from A to Z Learning Track is a comprehensive program that covers all aspects of SQL from basics to advanced levels. The Insert, Update, and Delete Data in SQL course teaches how to add, modify, and delete data in a relational database.

The

Standard SQL Functions course provides an in-depth understanding of intermediate SQL and how to use different functions provided by SQL. As computers become even more powerful and faster, learning how to manage, manipulate and analyze data becomes even more critical than before, so the SQL from A to Z Learning Track provides its learners with resources and tools to develop their SQL skills.

SQL is a widely used programming language for database management and data manipulation. In this article, we will discuss two courses of the SQL from A to Z Learning Track:

Creating Basic SQL Reports and

Window Functions.

Creating Basic SQL Reports

Creating Basic SQL Reports is a fundamental course in the SQL from A to Z Learning Track. The course covers how to generate basic reports using SQL.

This course is designed for users with intermediate SQL experience who are willing to develop their skills to build more complex reports.

GROUP BY Clause

The GROUP BY clause is an essential feature of the course that enables the course participants to group data and aggregate it to draw meaningful insights. GROUP BY statement is used to group the results of a SELECT query based on one or more columns.

The course teaches how to group data by using the GROUP BY clause, and understand how to apply aggregate functions like AVG, COUNT, MAX, and SUM on the selected data.

Aggregates

Aggregate functions are mathematical functions used to summarize data included in a result set. The

Creating Basic SQL Reports course teaches how to use these functions to generate reports to calculate the count, sum, average, and other statistical values of the data.

Filtering

Filtering is an essential aspect of reporting analysis. The course teaches how to filter data based on different criteria using the WHERE clause, which enables the user to limit the number of returned rows.

Subqueries

A subquery is a query that appears as an expression inside another query. It is a powerful tool used to extract data from a table and then use it in another query’s criteria.

The

Creating Basic SQL Reports course covers how to use a subquery as a filtering mechanism when reporting the data.

Window Functions

Window Functions is an advanced course in the SQL from A to Z Learning Track. It covers complex reports, including the use of

Window Functions.

This course is tailored to users who already have experience with SQL and want to learn about the more sophisticated features that SQL has to offer.

Ranking Functions

The course covers

Ranking Functions, which are used to assign a rank to each row within its partition based on the designated criterion. The

Ranking Functions covered in this course include ROW_NUMBER, RANK, and DENSE_RANK.

Aggregate Functions

Aggregate functions are also covered in the

Window Functions course. These functions can be used in conjunction with

Window Functions to create complex reports.

The course covers advanced aggregate functions like LAG, LEAD, FIRST_VALUE, and LAST_VALUE.

Partitioning

Partitioning is the concept of dividing results obtained from a query into multiple groups based on one or more criteria. The course teaches how to divide data into partitions so that each partition contains a subset of the rows in a result set, making it easier to process and analyze.

Current and Lagging Rows

The

Window Functions course covers how to use the OVER clause with the window functions. The OVER clause defines how to partition rows and sorts them within the partition in a particular order.

The course also covers two keywords, CURRENT ROW and LAG, to identify the current and previous rows. In conclusion, the SQL from A to Z Learning Track is a comprehensive program that covers SQL from basics to advanced levels.

The

Creating Basic SQL Reports course teaches how to group data, filter data, apply aggregates, and subqueries to generate basic reports. On the other hand, the

Window Functions course covers advanced features like ranking functions, partitioning, and the use of OVER clause with window functions.

Both courses are invaluable to database analysts and software engineers as they provide them with the technical skills necessary to create insights from data using SQL. SQL is a powerful language for database management and data analysis.

In this article, we will cover two advanced courses in the SQL from A to Z Learning Track:

Recursive Queries and

GROUP BY Extensions in SQL.

Recursive Queries

Recursive Queries is a course that explores SQL’s capabilities to handle hierarchical data using

Recursive Queries and Common Table Expressions(CTE). This feature enables processing tree-like structures and complex data schema with ease.

Hierarchical data

Hierarchical data is a common data modeling technique used for organizing, analyzing, and visualizing the data having parent-child relationships. In the

Recursive Queries course, users learn how recursive queries can be used to organize and analyze such hierarchical data efficiently.

Recursion

Recursion is a technique that repeats a specific operation multiple times until it meets a certain condition. In the

Recursive Queries course, the concept of recursion is taught, where the recursive query repeatedly splits data into smaller partitions to build and analyze hierarchical data.

WITH clause

The

WITH clause, also known as a CTE, is the key feature used in designing recursive queries. It enables splitting a complex problem into smaller problems and recursively combining results to get the final solution.

The

Recursive Queries course covers the

WITH clause and how it can be used to create recursive queries.

Tree Structures

Tree Structures are a hierarchical model that resembles a tree, with nodes connected to one or more parent node. The

Recursive Queries course teaches how to create, manipulate and analyze tree structures using SQL, and CTEs.

GROUP BY Extensions in SQL

GROUP BY Extensions is an advanced course in the SQL from A to Z Learning Track that explores advanced SQL techniques for data analytics in complex reporting scenarios. ROLLUP, CUBE, and GROUPING SETs

ROLLUP, CUBE and GROUPING SETs are specialized operators of the GROUP BY clause that are used to generate multi-dimensional roll-up and pivot tables.

The GROUP BY Extensions course covers ROLLUP, CUBE, and GROUPING SETs and how they are used in data warehousing, multi-dimensional data analysis, and creating real-time reports.

Data warehousing

Data warehousing is a vital part of data management that facilitates the management, storage, and analysis of large volumes of data. In the GROUP BY Extensions course, you will learn how to use SQL for data warehousing and how different GROUP BY Extensions can be applied to it.

Multi-dimensional data analysis

Multi-dimensional data analysis refers to computing operations that process data along different dimensions, such as time, location, and product. The GROUP BY Extensions course shows how to create reports that contain different dimensions with roll-up and drill-down functionality using specialized operators like ROLLUP, CUBE and GROUPING SETs.

In conclusion, the

Recursive Queries and

GROUP BY Extensions in SQL courses provide valuable knowledge for data analysts and professionals in database management, data warehousing, and data analytics.

The

Recursive Queries course provides an in-depth understanding of the CTE and recursion features of SQL, which can be applied to build and analyze hierarchical data. Conversely, the GROUP BY Extensions course provides advanced knowledge and techniques, such as ROLLUP, CUBE, and GROUPING SETs, for data warehousing and multidimensional analysis.

Both courses contribute to increasing the capabilities of SQL users in handling complex data scenarios. In conclusion, the SQL from A to Z Learning

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