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Private teachers in Chiclana De La Frontera

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9 private teachers in Chiclana De La Frontera

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9 private teachers in Chiclana De La Frontera

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
Electrical circuits · Automata
Biotechnology
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IB Mathematics (AA or AI, SL or HL) - IB Physics (SL or HL) (Bremen)
Akbar
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Akbar is very professional and punctual. He was able to establish a connection with my son which in turn made him comfortable, and gave him a better understanding on the subjects he has difficulty from. I would definitely recommend him. His IB background is a plus to those like us, who wants to get used to the system of the program.
Review by RIZALINE
Private Spanish classes for foreigners. On-line.
Isabel
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Isa makes the best out of each class! She knows various teaching approaches and adapts according to my needs in order for me to learn as much as possible :) ! I am happy and grateful to learn from her!
Review by ILINCA
Spanish tutor for all ages and levels from a spanish native speaker (Dublin)
Elena
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I really enjoyed my lesson with Elena She is very patient and explains things very well The lesson was fun and I'm looking forward To my next lesson
Review by DAVID
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