I'm actually not familiar with Access, but I'll try to help. Usually the primary key will physically order the rows in a database table. In SQL-query you can use "order by" clause. The default order is usually ascending. You can also add "asc" or "desc" after the column name.
Please do notice, primary keys are not for ordering rows. You should really let the database decide how to save the rows. You should always order the rows in your query (if needed), not modify or trust the physical order!
select col1
from foo
order by col2
select col1
from foo
order by col2 desc, col3 asc
That's something like: SELECT AVG(column) AS average_value_of_column FROM table;
Data in a database table can be inserted by the help of Data Manipulation Language, by writing query in language like Sql.
It is better to validate the data going into the database for errors rather then data coming out. The data to be retrieved can be done using the $_REQUEST or mysql_fetch_array or PDO statements. I am giving 2 simple examplesIf you want a particular data that can be obtained by using the where clause
Answer:when a join condition is omited when getting result from two tables then that kind of query gives us Cartesian product, in which all combination of rows displayed. All rows in the first table is joined to all rows of second table...Hope this answer helps!Inclus - We provide individual and corporate trainingEducate, Learn & Serve
Each Order Form consists of a number of 'Boxes' which are completed to record individual pieces of information about a single order. Each Record in a database order table consists of a number of fields which are used to store individual pieces of information about a single order If you have a filing cabinet filled with lots of Order Forms this is like the Order Table in the database which stores lots of Order Records.
To create a query that will display the top five orders in descending order by order total create a select query object. Open the query design table and select the top five orders, then choose to display them in descending order.
Index field.
ascending, descending
Assuming that the values are stored in an array, you can use the php function sort($array) to sort ascending, and rsort to sort descending. The following link gives a table that lists all of the built in PHP sort functions: http://php.net/manual/en/array.sorting.php
To sort from smallest to largest. Ascending means to go up.
Sort refers to the action wherein the data fetched from a database table is ordered as per a specific criteria. The default order of sort is Ascending and the user can do a descending sort by using the keyword DESC after the order by keyword. Ex: select * from employee_details order by employee_num desc If the above statement is executed data will be displayed in descending order of employee numbers.
Order by
Not sure
Sort refers to the action wherein the data fetched from a database table is ordered as per a specific criteria. The default order of sort is Ascending and the user can do a descending sort by using the keyword DESC after the order by keyword. Ex: select * from employee_details order by employee_num desc If the above statement is executed data will be displayed in descending order of employee numbers.
The basic parts of a SQL Select query are: SELECT column names FROM table name WHERE conditions ORDER BY column names The basic parts of an insert query would be: INSERT INTO table name (VALUES) The basic parts of a delete query would be DELETE FROM table name WHERE conditions The basic parts of an update query would be UPDATE TABLE table name SET column name = value WHERE conditions
A query datasheet displays the results of a query operation, showing data based on specified criteria or calculations. A table datasheet displays the data in a table format, representing information stored in a database table. In essence, a query datasheet is derived from a table datasheet and is dynamic based on the query criteria.
Your question is unclear. If you mean if you delete a query, then it does not affect the data in the table. Deleting any kind of query does not affect the data in any table it uses. If you mean if you run a Delete query, then yes the data in the table will be deleted. That is what Delete queries are for.