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  2. Data control language - Wikipedia

    en.wikipedia.org/wiki/Data_Control_Language

    For example: GRANT can be used to give privileges to user to do SELECT, INSERT, UPDATE and DELETE on a specific table or multiple tables. The REVOKE command is used take back a privilege (default) or revoking specific command like UPDATE or DELETE based on requirements.

  3. SQL syntax - Wikipedia

    en.wikipedia.org/wiki/SQL_syntax

    This is an important element of SQL. Statements, which may have a persistent effect on schemata and data, or may control transactions, program flow, connections, sessions, or diagnostics. SQL statements also include the semicolon (";") statement terminator. Though not required on every platform, it is defined as a standard part of the SQL grammar.

  4. Select (SQL) - Wikipedia

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

    The SQL SELECT statement returns a result set of rows, from one or more tables. [1] [2] A SELECT statement retrieves zero or more rows from one or more database tables or database views. In most applications, SELECT is the most commonly used data manipulation language (DML) command.

  5. DUAL table - Wikipedia

    en.wikipedia.org/wiki/DUAL_table

    SQLite: A VIEW named "dual" that works the same as the Oracle "dual" table can be created as follows: CREATE VIEW dual AS SELECT 'x' AS dummy; SAP HANA has a table called DUMMY that works the same as the Oracle "dual" table. Teradata database does not require a dummy table. Queries like 'select 1 + 1' can be run without a "from" clause/table name.

  6. Relational database - Wikipedia

    en.wikipedia.org/wiki/Relational_database

    The SQL equivalent of selection is the SELECT query statement with a WHERE clause. The projection operation (π) extracts only the specified attributes from a tuple or set of tuples. The join operation defined for relational databases is often referred to as a natural join (⋈).

  7. After uproar, Anthem Blue Cross reversing anesthesia time ...

    www.aol.com/uproar-anthem-blue-cross-reversing...

    In a statement last month, the American Society of Anesthesiologists also called on Anthem to reverse the policy. "With this new policy, Anthem will arbitrarily pre-determine the time allowed for ...

  8. 22 Paw-fect Gifts For Pets And Their Obsessed Humans - AOL

    www.aol.com/spoil-furry-family-22-gifts...

    We've rounded up 22 gifts that celebrate this beautifully unbalanced relationship where humans willingly become servants to creatures who occasionally knock water glasses off tables for fun.

  9. Correlated subquery - Wikipedia

    en.wikipedia.org/wiki/Correlated_subquery

    In a SQL database query, a correlated subquery (also known as a synchronized subquery) is a subquery (a query nested inside another query) that uses values from the outer query. This can have major impact on performance because the correlated subquery might get recomputed every time for each row of the outer query is processed.