MOS Access Expert key terms
MOS Access Expert · Get comfortable with the vocabulary.
- Trust Center
- Related: Trusted Location, Macro Security
A settings area that controls security and privacy behavior for Access, including whether blocked content such as unsafe expressions or disabled macros is allowed to run when a database opens.
- Trusted Location
- Related: Trust Center, Macro Security
A folder path registered in Access options so that databases stored there open without blocked-content warnings, letting code and macros run automatically.
- Macro Security
- Related: Trust Center, Trusted Location
The setting that determines whether VBA code and macros in a database are enabled, disabled with a warning, or disabled entirely when the file is opened.
- Compact and Repair
- Related: Back Up Database, Split Database
A maintenance command that rewrites the database file, reclaiming space left by deleted objects and fixing minor corruption, optionally saving a backup copy first.
- Back Up Database
- Related: Compact and Repair, Split Database
A command that saves a copy of the current database file to a chosen location, preserving data and objects so they can be restored if something goes wrong.
- Split Database
- Related: Linked Table, Back Up Database
A wizard that divides a database into a back-end file holding only tables and a front-end file holding queries, forms, reports, and code that links to those tables.
- Linked Table
- Related: Split Database, External Data
A table whose data lives in an external source, such as another Access file, so Access stores only a connection and the field definitions rather than the rows.
- External Data
- Related: Linked Table, Import Specification
The ribbon tab used to import or link data from other formats, including Excel workbooks, text files, and other databases, and to export Access objects outward.
- Import Specification
- Related: External Data, Data Type
A saved set of options describing how a delimited text file maps to fields, including delimiters, text qualifiers, and data types, reusable on later imports.
- Navigation Pane
- Related: Object Dependencies, Database Documenter
The panel listing database objects such as tables, queries, forms, and reports, allowing grouping, sorting, filtering, and opening of those objects.
- Object Dependencies
- Related: Navigation Pane, Database Documenter
A task pane view that shows which objects rely on a selected object and which objects the selected object relies on, helping assess the impact of changes.
- Database Documenter
- Related: Object Dependencies, Navigation Pane
A tool that prints or exports detailed documentation of selected database objects, including properties, field definitions, and code, for review or archiving.
- Data Type
- Related: Field Size, Input Mask
The property that determines what kind of values a field stores, such as Short Text, Number, Currency, Date/Time, Yes/No, or Attachment, and how much space they use.
- Field Size
- Related: Data Type, Validation Rule
A property limiting the maximum length of Short Text values or the range and precision of Number values, affecting storage and allowable input.
- Input Mask
- Related: Validation Rule, Format Property
A pattern of placeholder characters that guides and constrains how data is typed into a field, such as a phone number or postal code format.
- Validation Rule
- Related: Input Mask, Validation Text
An expression evaluated when data is entered or edited, rejecting values that fail the test and optionally showing a custom validation message.
- Validation Text
- Related: Validation Rule
The message displayed to users when entered data violates a field's or record's validation rule, explaining what is required.
- Default Value
- Related: Required Property, Data Type
A property that supplies a value automatically for new records or new fields, reducing typing when most entries share the same starting value.
- Required Property
- Related: Default Value, Validation Rule
A field setting that prevents saving a record when that field is left empty, enforcing that every row has a value for it.
- Primary Key
- Related: Indexed Property, Foreign Key
A field or set of fields whose values uniquely identify each record in a table and cannot be duplicated or left empty.
- Foreign Key
- Related: Primary Key, Referential Integrity
A field that stores the primary key value of a related table, creating the link used to enforce referential integrity between the two tables.
- Referential Integrity
- Related: Foreign Key, Cascade Delete
A relationship rule ensuring that a foreign key value matches an existing primary key value, preventing orphan records and blocking invalid edits or deletes.
- Cascade Delete
- Related: Referential Integrity, Relationship
A relationship option that automatically deletes related child records when their parent record is deleted, keeping referential integrity without manual cleanup.
- Indexed Property
- Related: Primary Key, Field Size
A field setting that builds a lookup structure to speed sorting and searching, optionally forbidding duplicate values in that field.
- Lookup Field
- Related: Data Type, Relationship
A field that displays a list of values from a table, query, or typed list, storing a value while presenting choices to the person entering data.
- Format Property
- Related: Input Mask, Data Type
A setting that controls how stored values are displayed, such as date patterns or currency symbols, without changing the underlying data.
- Select Query
- Related: Action Query, Criteria
The most common query type, which retrieves records from one or more tables and displays the chosen fields in a datasheet without altering stored data.
- Action Query
- Related: Select Query, Totals Query
A query that changes data rather than only displaying it, including Append, Update, Delete, and Make Table queries that modify records or create new tables.
- Criteria
- Related: Wildcard, Parameter Query
Expressions entered in the query design grid that filter which records are returned, using operators, wildcards, and field references.
- Wildcard
- Related: Criteria, Like Operator
A character such as an asterisk or question mark used in criteria to match any number of characters or a single character within text values.
- Parameter Query
- Related: Criteria, Select Query
A query that prompts for input values at run time, using bracketed prompt text in criteria so the same query can return different results on demand.
- Totals Query
- Related: Select Query, Crosstab Query
A query that groups records and calculates aggregate values such as sum, count, average, or maximum by using the Total row in design view.
- Crosstab Query
- Related: Totals Query, Select Query
A query that summarizes data in a grid, placing one field's values as row headings, another's as column headings, and an aggregate in each cell.
- Calculated Field
- Related: Expression Builder, Criteria
An expression added in query design that derives a new column from existing fields, such as multiplying quantity by price or joining text values.
- Expression Builder
- Related: Calculated Field, Criteria
A dialog for constructing expressions from fields, operators, and built-in functions, with lists and help to reduce syntax errors.
- Join Type
- Related: Relationship, Select Query
The setting that determines which records a relationship returns, including inner joins and outer joins that keep unmatched rows from one side.
- Layout View
- Related: Control, Stacked Layout
A view for forms and reports that shows actual data while letting you move, resize, and arrange controls directly, without the full detail of design view.
- Control
- Related: Layout View, Control Source
An object placed on a form or report, such as a text box, label, combo box, or button, that displays data or performs an action.
- Control Source
- Related: Control, Bound Control
The property that binds a control to a field, expression, or nothing at all, determining what data the control displays or where entered data is stored.
- Bound Control
- Related: Control Source, Control
A control whose control source is a table or query field, so it displays and edits stored data rather than a fixed or calculated value.
- Stacked Layout
- Related: Tabular Layout, Layout View
An arrangement that keeps controls in a single column so they align and resize together, common for forms viewed on narrow screens.
- Tabular Layout
- Related: Stacked Layout, Layout View
An arrangement that places controls in rows and columns so labels sit beside their fields, letting the group resize and align as a unit.
- Theme
- Related: Conditional Formatting, Layout View
A saved set of fonts and colors applied consistently to forms and reports, changing the look of many controls at once.
- Conditional Formatting
- Related: Theme, Control
A rule that changes a control's appearance, such as font color or background, when its value meets a specified condition.
- Grouping and Sorting
- Related: Aggregate Function, Report Sections
The report pane where you define levels that organize records into groups and set sort order, enabling subtotals and group headers or footers.
- Aggregate Function
- Related: Grouping and Sorting, Report Sections
A calculation such as Sum, Count, or Average applied to a group or to the whole report to summarize values rather than list them individually.
- Report Sections
- Related: Grouping and Sorting, Layout View
The bands that make up a report, including report header and footer, page header and footer, group header and footer, and detail, each printed at set times.
- Sorting and Grouping
- Related: Grouping and Sorting, Aggregate Function
Settings that determine the order in which report records appear and which fields define groups, controlling where breaks and subtotals occur.
- Page Setup
- Related: Print Preview, Report Sections
The dialog that controls margins, orientation, paper size, and columns for printing a report or form.
- Print Preview
- Related: Page Setup, Report Sections
A view showing exactly how a report or form will appear on printed pages, allowing checks of pagination and layout before printing.