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Private teachers in Bad Soden Am Taunus

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Trusted teacher: Module 1: SQL Overview Outlining SQL as the cornerstone of database activity Applying the ANSI/ISO standards Describing the fundamental building blocks: tables, columns, primary keys, and foreign keys Module 2: Building the Database Schema - Creating tables and columns Building tables with CREATE TABLE Modifying table structure with ALTER TABLE Adding columns to an existing table Removing tables with DROP TABLE - Protecting data integrity with constraints Guaranteeing uniqueness with primary key constraints Enforcing integrity with foreign key constraints Imposing business rules with check constraints - Improving performance with indexes Expediting data retrieval with indexes Recommending guidelines for index creation Module 3: Manipulating Data - Modifying table contents Adding table rows with INSERT Changing row content with UPDATE Removing rows with DELETE - Applying transactions Controlling transactions with COMMIT and ROLLBACK Deploying BEGIN TRANSACTION in SQL Server Module 4: Working with the SELECT Statement - Writing Single Table queries Retrieving data with SELECT Specifying column expressions Sorting the result with ORDER BY Handling NULL values in expressions - Restricting rows with the WHERE filter Testing for equality or inequality Applying wildcard characters Avoiding NULL value pitfalls Module 5: Querying Multiple Tables - Applying the ANSI/ISO standard join syntax Matching related rows with INNER JOIN Including nonmatched rows with OUTER JOIN Creating a Cartesian product with CROSS JOIN - Combining results with set operators Stacking results with UNION Identifying matching rows with INTERSECT Utilizing EXCEPT to find nonmatching rows Module 6: Employing Functions in Data Retrieval - Processing data with row functions Conditional formatting with the CASE expression Utilizing the CASE expression to simulate IF tests Dealing with NULL values - Performing analysis with aggregate functions Summarizing data using SUM, AVG and COUNT Finding the highest/lowest values with MAX and MIN Defining the summary level with GROUP BY Applying filter conditions with HAVING Module 7: Constructing Nested Queries - Applying subqueries in filter conditions Creating correlated vs. noncorrelated subqueries Testing the existence of rows - Including subqueries in expressions Placing subqueries in the column list Creating complex expressions containing subqueries Handling subqueries that return no rows Module 8: Developing In-Line and Stored Views - Breaking down complex problems Selecting data from a query result set Using subqueries in the FROM clause - Creating views in a database Building reusable code Creating updateable vs. non-updateable views
Mysql · Oracle database · Microsoft sql server
Chess
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Our students from Bad Soden Am Taunus evaluate their teacher.

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Only reviews of students are published and they are guaranteed by Apprentus. Rated 4.9 out of 5 based on 22 reviews.

French Language for all levels, and all ages Best Way (Riyadh)
Amine
I’m a beginner in French, I am incredibly grateful for the opportunity to learn with Amine. He’s not only kind and understanding, but he also knows how to make lessons feel really manageable. He takes the time to explain things in a way that’s easy to follow, and I never feel overwhelmed even when we cover new material. The syllabus he puts together is perfectly structured, making it easy for me to keep up without feeling stressed. I really appreciate how he adjusts the pace to fit my needs, and it makes learning feel both comfortable and motivating. Thanks to him, I’m feeling more confident with my French And I’m looking forward to continuing my French learning journey with him
Review by MUSTAFA
Learn the basics of accordion, the basics of music, and IMPROVE your accordion playing skills!
Stefan
Enjoyed his class! He was very detailed in his teaching - particular about the posture and attention to detail in terms of the fingering and pacing, despite it being an online class. His class had very good pacing in his teaching and provide relevant teaching materials for beginner accordion students. He is also very responsive on Apprentus and accommodating to virtual lessons. Highly recommend!
Review by JANICE
Spanish for you! ELE classes for students from all over the world (Balvanera)
María Virginia
We arw a couple enjoying the private lessons with Vir. She is an excellent teacher and appart from learning a bit of Spanish we are also learning about Buenos Aires and Argentina. We really enjoy the time together!
Review by AMY

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