COMPUTER SCIENCE AND ENGINEERING
SQL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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It is used to select a database
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It is not a SQL statement
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It is used to select a website
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It is used to specify which table to select data from.
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Detailed explanation-1: -FROM clause is used to specify the table(s) from which the data needs to be fetched. We can use multiple tables in the FROM clause by using JOINs like INNER JOIN, LEFT OUTER JOIN, RIGHT OUTER JOIN, or NATURAL JOIN.
Detailed explanation-2: -The FROM clause is used to retrieve rows from the referenced table(s). As shown in the syntax, the FROM clause can either reference a single table or include a nested tables clause.
Detailed explanation-3: -The SELECT clause specifies the columns from which data values are to be retrieved by the query. Data retrieval is limited to the columns specified. When selecting from two or more tables having duplicate column names, it may be necessary to qualify column names with table or view names.
Detailed explanation-4: -The SELECT statement is used to select data from a database. The data returned is stored in a result table, called the result-set.
Detailed explanation-5: -Previous Page. The SQL SELECT statement is used to fetch the data from a database table which returns this data in the form of a result table.