scrollable resultset example

I remember writing an article before, but it seems to be a problem. It should be the number of columns. Here, I will correct myself and record it, because I will always forget it, I used it today, so I quickly sent it... CodeAs follows:

Scrollable result set 1)Com.microsoft.sqlserver.jdbc.SQLServerException: The requested operation is not supported for a forward-only result set. When TYPE is set to:resultset.type_forward_only (default), the cursor cannot be moved arbitrarily, but

1. Read and write LOBIn addition to numbers, strings, and dates, many databases can store large objects, samples, or other data. In SQL, a binary large object is called a blob, and a large object of characters is called a clob.To read the LOB, the

JDBC does not intuitively provide us with the number of records of the resultset query result. In this case, you cannot blindly call the method that looks like obtaining the number of records without querying the API. For example, getfetchsize ()

Then prev: scrollable result set; 1) Com.microsoft.sqlserver.jdbc.SQLServerException: The result set cannot be updated. When concurrency is set to:resultset.concur_read_only (default), the result set cannot update the data, otherwise it will be

JDBC Common interface, Class introductionJDBC provides a unified, database-independent API to execute SQL commands. The APIs commonly used classes and interfaces are as follows:DriverManagerManagement of the JDBC-driven service class, mainly through

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First, JDBC Common interface, Class introductionJDBC provides a unified, database-independent API to execute SQL commands. The APIs commonly used classes and interfaces are as follows:DriverManagerManagement of the JDBC-driven service class, mainly

1. Load the driver.There are multiple methods for registering the driver, Class.forName (); is an explicit load. When a driver class is classloader loaded, DriverManager registers the instance of the driver class during the dissolution process. This

1. Load the driver.The brochure driver has multiple methods, Class.forName (); is an explicit load. When a driver class is classloader loaded, DriverManager will register an instance of the driver class during the dissolution process. This call was