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  2. Data control language - Wikipedia

    en.wikipedia.org/wiki/Data_Control_Language

    GRANT in first case we gave privileges to user User1 to do SELECT, INSERT, UPDATE and DELETE on the table called employees. REVOKE with this command we can take back privilege to default one, in this case, we take back command INSERT on the table employees for user User1. DENY is a specific command.

  3. Select (SQL) - Wikipedia

    en.wikipedia.org/wiki/Select_(SQL)

    Although not in standard, most DBMS allows using a select clause without a table by pretending that an imaginary table with one row is used. This is mainly used to perform calculations where a table is not needed. The SELECT clause specifies a list of properties (columns) by name, or the wildcard character (“*”) to mean “all properties”.

  4. SQL syntax - Wikipedia

    en.wikipedia.org/wiki/SQL_syntax

    A derived table is the use of referencing an SQL subquery in a FROM clause. Essentially, the derived table is a subquery that can be selected from or joined to. The derived table functionality allows the user to reference the subquery as a table. The derived table is sometimes referred to as an inline view or a subselect.

  5. Data query language - Wikipedia

    en.wikipedia.org/wiki/Data_query_language

    Data query language (DQL) is part of the base grouping of SQL sub-languages. These sub-languages are mainly categorized into four categories: a data query language (DQL), a data definition language (DDL), a data control language (DCL), and a data manipulation language (DML).

  6. DUAL table - Wikipedia

    en.wikipedia.org/wiki/DUAL_table

    Microsoft SQL Server: SQL Server does not require a dummy table. Queries like 'select 1 + 1' can be run without a "from" clause/table name. [5] MySQL allows DUAL to be specified as a table in queries that do not need data from any tables. [6] It is suitable for use in selecting a result function such as SYSDATE() or USER(), although it is not ...

  7. Here's How Much Every State Will Spend Per Child This ... - AOL

    www.aol.com/finance/heres-much-every-state-spend...

    Take a look at every state ranked by how much each parent is going to spend on each kid this holiday season.

  8. The 6 most common headache types — and when to see a doctor

    www.aol.com/6-most-common-headache-types...

    People who experience any of the following warning signs should see a health care provider immediately or call 911 to rule out a more serious medical condition. - Worst headache of your life

  9. President-elect Donald Trump notched a 54% approval rating, one of his all-time highest, compared to about 46% who disapprove of him, an Emerson College poll found.