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What are the important topics in SQL?

What are the important topics in SQL?

Star Schema. Snow Flake Schema. Data Definition Language (DDL) basics. Data Manipulation Language (DML) basic.

What are the topics in SQL Server?

SentryOne’s Popular SQL Server Topics

  • Performance Baselines and Benchmarks for Microsoft SQL Server. The Challenges of Database Performance Baselines and Benchmarks.
  • SQL Performance Tuning.
  • Detect and Resolve SQL Deadlocks.
  • SQL Trace.

What are the challenges faced in SQL Server?

5 Tricky SQL Database Performance Challenges

  • Definition Bank. Let’s look at some definitions before we begin:
  • Poorly-Written SQL. Because SQL is declarative, you can write the same query in many ways to receive the same results.
  • Bad Indexes.
  • Locking Contention.
  • Memory Problems.
  • High CPU Usage.

What is the syllabus for SQL?

Course Objectives: Learn about SQL – Structured Query Language ❖ Build database using Data Definition Language Statements Perform basic CRUD operations using Data Manipulation Language statements like Insert, Update and Delete Write and call Stored Procedures and Functions stored in database.

What are advanced SQL features?

Top 10 SQL Features

  • Date Functions (diff, part, format, etc)
  • Statistical Correlation.
  • CASE Statements.
  • Filtered Aggregations.
  • Project Implicit Federation.
  • Subqueries.
  • WITH Clause. SQL queries are notorious for quickly becoming complex.

What are the common problems you come across with database management?

Common Database Problems

  • Slow Read-Write Speeds. Performance slowdowns can occur due to high latency for disk read/writes.
  • Scaling Problems.
  • Incorrect Virtual Machine Setup.
  • Lack of Backup and Monitoring.
  • Query Performance.
  • User and Query Conflicts.
  • Configuration.
  • Capacity.

What are the disadvantages of SQL?

Various Disadvantages of SQL are as follows:

  • Complex Interface – SQL has a difficult interface that makes few users uncomfortable while dealing with the database.
  • Cost – Some versions are costly and hence, programmers cannot access it.
  • Partial Control –

What is Microsoft SQL Server 2008 used for?

SQL Server 2008 Enterprise is a comprehensive data management and business intelligence platform that provides enterprise-class scalability, data warehousing, security, advanced analytics and reporting support for running business-critical applications.

What are the important topic and ideas of database?

Must-know Topics on Database

  • Basic Concepts.
  • ER Model.
  • Relational Model.
  • Transactions and Concurrency Control.
  • Indexing, B and B+ trees.
  • File Organization.
  • SQL and NoSQL.
  • SQL Queries.

Which are the two main language features of SQL?

Features of SQL

  • Data Definition Language(DDL): SQL provides many commands, one of which is Data Definition Language(DDL).
  • Data Manipulation Language(DML)
  • Relational Foundation.

What is SQL discuss its three features?

SQL is used to define the data in the database and manipulate it when needed. SQL is used to create and drop the database and table. SQL is used to create a view, stored procedure, function in a database. SQL allows users to set permissions on tables, procedures, and views.