Đang chuẩn bị nút TẢI XUỐNG, xin hãy chờ
Tải xuống
A Microsoft Access query is a question about the information stored in Access tables. Your query can be a simple question about data in a single table, or it can be a more complex question about information stored in several tables. After run query, Microsoft Access returns only the information you requested. | Queries That Select Records (Chapter 6 – 7) Query Basics A Microsoft Access query is a question about the information stored in Access tables. Your query can be a simple question about data in a single table, or it can be a more complex question about information stored in several tables. After run query, Microsoft Access returns only the information you requested. Creating Queries in Design View The best starting point for query creation is the Design view. Choose Create Queries Query Design. Select the table that has the data you want, and then click Add Click Close. Creating Queries in Design View Select the fields you want to include in query. Arrange the fields from left to right in the order to appear in the query results. If you want to hide one or more columns, then clear the Show checkbox for those columns. Creating Queries in Design View Choose a sort order. Set your filtering criteria by place the expression into the Criteria box for the appropriate field. Choose . | Queries That Select Records (Chapter 6 – 7) Query Basics A Microsoft Access query is a question about the information stored in Access tables. Your query can be a simple question about data in a single table, or it can be a more complex question about information stored in several tables. After run query, Microsoft Access returns only the information you requested. Creating Queries in Design View The best starting point for query creation is the Design view. Choose Create Queries Query Design. Select the table that has the data you want, and then click Add Click Close. Creating Queries in Design View Select the fields you want to include in query. Arrange the fields from left to right in the order to appear in the query results. If you want to hide one or more columns, then clear the Show checkbox for those columns. Creating Queries in Design View Choose a sort order. Set your filtering criteria by place the expression into the Criteria box for the appropriate field. Choose Query Tools Design Results Run. Save the query. Getting the top records Use the Top Values box on the Design View toolbar to see the top records produced by the query. Open query in Design view. Sort table so that the records you’re most interested in are at the top. In the Query Tools Design Query Setup In return box, choose a different option Creating Queries by Wizard Create a simple Query by using wizard. The Query wizard works by asking you a series of questions. Choose Create Queries Query Wizard. Creating Queries by Wizard Choose a query type. The Query wizard includes a few common kinds of queries. Simple Query Wizard. Crosstab Query Wizard. Find Duplicates Query Wizard. Find Unmatched Query Wizard OK. In the Tables/Queries box, choose the table that has the data you want. Creating Queries by Wizard Add the fields you want to see in the query results Click Next. Enter query name Click Finish. Understanding the SQL View Behind the scenes, every query is actually a .
