COMPUTER SCIENCE AND ENGINEERING
SQL
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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from,
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, from
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from ;
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; from
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Detailed explanation-1: -The syntax to get all table names with the help of SELECT statement. mysql> use test; Database changed mysql> SELECT Table name as TablesName from information schema. tables where table schema = ‘test’; Output with the name of the three tables.
Detailed explanation-2: -The * operator represents all the columns of a table. So, you don’t need to specify each column name in the SELECT query to get data from all the columns. SELECT * FROM Employee; The above query returns all the rows and columns data from the Employee table, as shown below.
Detailed explanation-3: -An asterisk (” * “) can be used to specify that the query should return all columns of the queried tables. SELECT is the most complex statement in SQL, with optional keywords and clauses that include: The FROM clause, which indicates the table(s) to retrieve data from.