Please written by computer source How many hotels are NOT in the system as of 3/1/04 but in the 2002 data set? Table: System Size 2004-03-01 2002 Please explain text in detail for Microsoft access.
SQL
SQL stands for Structured Query Language, is a form of communication that uses queries structured in a specific format to store, manage & retrieve data from a relational database.
Queries
A query is a type of computer programming language that is used to retrieve data from a database. Databases are useful in a variety of ways. They enable the retrieval of records or parts of records, as well as the performance of various calculations prior to displaying the results. A search query is one type of query that many people perform several times per day. A search query is executed every time you use a search engine to find something. When you press the Enter key, the keywords are sent to the search engine, where they are processed by an algorithm that retrieves related results from the search index. Your query's results are displayed on a search engine results page, or SER.
Please written by computer source
How many hotels are NOT in the system as of 3/1/04 but in the 2002 data set?
Table: System Size 2004-03-01
2002
Please explain text in detail for Microsoft access.
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