This MS Access tutorial explains how to select the first record of each group using First Function. MS Access select the first record of each group When I create human resources report, I have always come across a situation where one employee has more than one records. For example, I want to create a staff list where one employee only has one row of record. If I add emergency contact field to the report and if an employee has more than one emergency contacts, then the Query will return one emp...

This Access tutorial explains how to perform case sensitive join table, such as case sensitive inner join and case sensitive left join. You may also want to read:Access StrComp Function to Compare text (case sensitive comparison) Access Case Sensitive Join Table In Microsoft Access, comparison of text is not case sensitive. For example, Access considers "AAA" and "aaa" are the same. To compare String in Expression, please refer to my previous post about how to use StrComp Function. The m...

This Microsoft Access tutorial explains how to produce Cartesian product with Cross Join in Access Query. You may also want to read: Create Cartesian product with Excel Query Microsoft Access Cartesian product with Cross Join In SQL, there are several types of Table Join: Left Join, Right Join, Inner Join and Cross Join. Cross Join is to produce all possible combination of records in joined Tables which are unrelated (without common key), the result is known as Cartesian product. Most...

This Microsoft Access tutorial explains how to replace Crosstab Query with Expression in order to add multiple aggregate values. Access replace Crosstab Query with Expression In previous post, I have introduced how to use Crosstab Query to build a matrix report. However, Crosstab Query has a limitation that it can only add one aggregate value in the report, which is the Sum of amount in the above example. I also don't like the fact that I need to define the order of the month in the Pro...

This Microsoft Access tutorial explains how to create Crosstab Query and demonstrate how to add grand total. You may also want to read: Create Matrix Report in Access Report Access replace Crosstab Query with Expression Excel VBA Convert Text in Columns and Rows into Matrix Table Access Crosstab Query Crosstab Query is a Matrix Report, the most commonly known Matrix Report is Excel Pivot Table, where you can place fields in row and column, and then apply Aggregate Functions on a fi...

This Microsoft Access tutorial explains how to update table records from another table or query. Access update table records You can always update table records manually by viewing the table and then enter the value. With Update Query, you can update multiple table records that meet defined criteria, or update table records from another table. Note that you may update data in an Access table, but you cannot update data in linked table. For example, if your Access table is linked to Excel sp...

This Access tutorial explains how to delete table records and delete records that exist in another table in Microsoft Access. Access delete table records You can always modify or delete table data manually by viewing the table and then press the delete button in keyboard. With Query, you can delete specific rows of record that meet the criteria. Note that you may delete data in an Access table, but you cannot delete data in linked table. For example, if your Access table is linked to Excel spr...