How to retrieve the data in SQL?

Question

In SQL, to retrieve data stored in our tables, we use the SELECT statement. The result of this statement is always in the form of a table that we can view with our database client software or use with programming languages to build dynamic web pages or desktop applications.

How can we retrieve data using query?

The syntax is: SELECT column1, column2 FROM table1, table2 WHERE column2='value';1The SELECT clause specifies one or more columns to be retrieved; to specify multiple columns, use a comma and a space between column names. ... 2The FROM clause specifies one or more tables to be queried.SQL example statements for retrieving data from a table - IU KB

What is the fastest way to retrieve data from a SQL database?

Below are 23 rules to make your SQL faster and more efficient1Batch data deletion and updates. ... 2Use automatic partitioning SQL server features. ... 3Convert scalar functions into table-valued functions. ... 4Instead of UPDATE, use CASE. ... 5Reduce nested views to reduce lags. ... 6Data pre-staging. ... 7Use temp tables. ... 8Avoid using re-use code.How to make SQL queries faster and more efficient | Freelancer.com

How do I retrieve a database record?

You can retrieve records from the database via a SELECT command. In order to execute a SELECT command you need to do the following: Create and open a database connection. Create a EDBCommand object representing the Select statement to execute.

Expert · Answer