Find Access Records That Exist in Two Locations
Use two correlated EXISTS tests in Microsoft Access to return each item only when it is associated with both selected locations.
Category: MS Access Functions
Fix Unexpected Enter Parameter Value Prompts in Access
Troubleshoot unwanted Enter Parameter Value prompts in Microsoft Access queries, forms, reports, expressions, and control references.
Access LEFT JOIN vs INNER JOIN with Examples
Compare INNER JOIN and LEFT JOIN in Microsoft Access, including unmatched rows, criteria placement, duplicate results, and update-query behavior.
Concatenate Multiple Rows in Microsoft Access
Concatenate values from multiple Access rows into one delimited string with a reusable DAO function, ordered input, Null handling, and performance cautions.
Rank Rows in Access Without ROW_NUMBER
Create deterministic row numbers or ranks in a Microsoft Access query using DCount, including group-based ranking and tie handling.
Use Date Criteria Correctly in Access Queries
Write reliable Microsoft Access date criteria using date delimiters, parameters, and an exclusive next-day boundary that handles stored times correctly.
Delete Duplicate Records in Access but Keep One
Delete duplicate Microsoft Access records while keeping the row with the lowest primary key, with a preview query and safeguards for Null values.
Update Records from Another Table with an Access JOIN
Use an Access UPDATE query with INNER JOIN to copy values from a related table, preview the affected records, and troubleshoot non-updateable queries.
Microsoft Access Functions and SQL Server Equivalents
Translate common Access expressions to SQL Server equivalents and identify differences that require more than a name change.
Use Form Controls as Microsoft Access Query Parameters
Read dates, text, and optional criteria from an open Access form and declare parameter types for reliable queries and reports.