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Tutorials » Microsoft Access » Functions and Expressions
Microsoft Access Functions and Expressions Tutorials
Learn what is event processing, automate your application with macros, Visual Basic fundamentals, automating your application with Visual Basic and more.
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 Microsoft Access / Functions and Expressions Action queries are queries that permit us in just one operation to perform changes on one o various rows in a table. With these queries we can create a new table including in it the records of another, change the data stored, insert new records or erase old records. Learn how to Make-table queries, Update queries, Append queries, Delete queries and Unshowing confirmation messages Site: www.teacherclick.com
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Microsoft Access / Functions and Expressions A crosstab query is used when we want to represent a summary query with two grouping columns like a double input table, in which each one of the group columns is an entry, one down the left side of the datasheet and the other across the top. Learn the crosstab Query wizard and the design view of a crosstab query. Site: www.teacherclick.com
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Microsoft Access / Functions and Expressions In Access we can define a special query to calculate totals on the records of a table (or various tables related). In order to obtain those totals we use summary functions so it is why we call them summary queries. Site: www.teacherclick.com
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Microsoft Access / Functions and Expressions Learn: Basic concepts on relationships, Creating the first relationship, Referential integrity, Adding tables to the relationship window, Removing tables from the relationship window, Editing relationships, Deleting relationships, Tidying the relationship window, Showing direct relationships and Visualizing all the relationships Site: www.teacherclick.com
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Microsoft Access / Functions and Expressions Every field within a table has a severals characteristics set out which provide an additional control with regard to the way in which the field functions. The properties appear in the lower part of the Table design window when we have a field selected. Site: www.teacherclick.com
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Microsoft Access / Functions and Expressions If you find yourself doing the same routine task over and over again, you might want to consider creating a macro to complete the task for you. A macro helps you perform routine tasks by automating them. Instead of manually performing a series of time-consuming, repetitive actions, you can record a single macro that does the entire task all at once for you. Site: www.brainbell.com
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Microsoft Access / Functions and Expressions As databases grow larger and larger, finding a specific record or group of records becomes harder and harder. Fortunately, Microsoft Access is equipped with an arsenal of Find, Sort, and Filter commands that can track down and organize a table's information in record time. Site: www.brainbell.com
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Microsoft Access / Functions and Expressions Tables are by far the most important part of any database. Tables are where a database stores all of its information. All the other database objectsqueries, forms, reports, pages, and macrosare merely tools to analyze, manipulate, and display the information stored in a table. Any of these other database objects are optionalbut without tables, a database wouldn't be a database. Site: www.brainbell.com
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Microsoft Access / Functions and Expressions Microsoft Access and Microsoft Visual Basic are not case-sensitive. Therefore, any word we are going to use that involves a field, its name, and new words we will introduce in this section, whether written in uppercase, lowercase or a mix, as long as it is the same word, represents the same thing. Based on this, the words TRUE, True and true, as related to Microsoft Access, represent the same word. In the same way, if the words NULL, Null, and null are used in an expression, they represent the same thing. Site: www.functionx.com
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Microsoft Access / Functions and Expressions A number is a digit (0, 1, 2, 3, 4, 5, 6, 7, 8, or 9), a combination of digits, or a combination of one or more digits, a separator, and one or more digits. Microsoft Access provides three techniques or categories of numbers. These should be applied appropriately to make your database as effective as possible. To specify that a column will contain only numeric values, after displaying the table in Design View and selecting the column under Field Name, set its Data Type to Number, Currency, or AutoNumber. Site: www.functionx.com
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Microsoft Access / Functions and Expressions A data type represents the kind of information that a particular field should or must hold. Every field in your database objects (tables, forms, and reports) should have the right type and it is your role to select the most appropriate of them. This helps both you and the user who performs data entry. Site: www.functionx.com
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Microsoft Access / Functions and Expressions Microsoft Excel provides a series of function destined to perform various types of financially related operations. These functions use common factors depending on the value that is being calculated. Many of these functions deal with investments or loan financing. Site: www.functionx.com
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Microsoft Access / Functions and Expressions An asset is an object of value. It could be a person, a car, a piece of jewelry, a refrigerator. Anything that has a value is an asset. In the accounting world, an asset is a piece of/or property whose life span can be projected, estimated, or evaluated. As days, months or years go by, the value of such an asset degrade. Site: www.functionx.com
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Microsoft Access / Functions and Expressions A domain-based function is used to get a value from another object and deliver it to the object in which it is being used or called. The general syntax of these functions is: Site: www.functionx.com
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Microsoft Access / Functions and Expressions A series or collection-based function is one that considers a particular column and performs an operations on all of its cells. For example, if you have a particular column in which users enter a string, you may want to count the number of strings that have been entered in the cells under that column. Site: www.functionx.com
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