Use SQL statement 1 in ASP: select statement

Use SQL statement 1 in ASP: select statement

Source: dns99.cn

There are so many SQL products that you may have to worry about. However, if you want to use ASP and SQL at the same time, you may feel dizzy. MySQL, SQL Server, and msql are both excellent SQL tools. Unfortunately, in the ASP environment, you do not need them to create practical SQL statements. However, you can use your access knowledge and corresponding access skills, coupled with our tips and skills, I believe you will be able to successfully add SQL to your asp web page. In the world of SQL, the most basic operation is the SELECT statement. When using SQL directly using database tools, many people will be familiar with the following operations: Select what From whichtable Where criteria Execute the preceding statement to create a query that stores the result. On the ASP page file, you can also use the above general syntax, but the situation is slightly different. during ASP programming, the content of the SELECT statement should be assigned to a variable as a string: SQL = "select what from whichtable where criteria" Now, I understand the way SQL is "spoken" in ASP. The next step is the method. As long as you meet your needs, the traditional SQL query mode and conditional query can be used smoothly. For example, assume that your database has a data table named products. Now you want to retrieve all the records in this table. Then you write the following code: SQL = "select * from products" The preceding code -- SQL statement is used to retrieve all the data in the table. After execution, all records in the data table are selected. However, if you only want to retrieve a specific column from the table, such as p_name. Then you cannot use the * wildcard. enter the name of a specific column. The Code is as follows: SQL = "select p_name from products" After the above query is executed, all content in the p_name column in the products table will be selected.