How do I count ResultSet rows in Java?

How do I count ResultSet rows in Java?

On contrary to this, getting the total number of counts is easy from ResultSet, just use the ResultSetMetaData object from ResultSet and call the getColumnCount() method. It returns an integer, which is equal to a total number of columns.

How do I find the number of rows in a ResultSet?

The best way to get number of rows from resultset is using count function query for database access and then rs….Yet, if you really need to retrieve the total number of rows before processing them, you can:

1. last()
2. getRow() to get the total number of rows.
3. beforeFirst()
4. Process the ResultSet normally.

How do you count in ResultSet?

You can get the column count in a table using the getColumnCount() method of the ResultSetMetaData interface. On invoking, this method returns an integer representing the number of columns in the table in the current ResultSet object.

How do you count rows?

Just click the column header. The status bar, in the lower-right corner of your Excel window, will tell you the row count. Do the same thing to count columns, but this time click the row selector at the left end of the row. If you select an entire row or column, Excel counts just the cells that contain data.

How do I get a complete row from a ResultSet?

The getRow() method of the ResultSet interface retrieves the current row number/position of the ResultSet pointer. This method returns an integer value representing the current row number to which the ResultSet pointer points to.

How do I get multiple rows from ResultSet?

Create ArrayList of Integer and add result , return that array list. Result set will contain the number of rows returned by the query. Using result set object. next we can easily go through this rows of data.

What is row count?

SQL Server @@ROWCOUNT is a system variable that is used to return the number of rows that are affected by the last executed statement in the batch. @@ROWCOUNT is used frequently in the loops to prevent the infinite loops and stop the current process when all the target rows are processed.

How does JDBC count records?

The SQL Count() function returns the number of rows in a table. Using this you can get the number of rows in a table.

How does Java handle multiple result sets?

7 Answers

1. getMoreResults() and execute() return false to indicate that the result of the statement is just a number and not a ResultSet .
2. You need to check stmt. getUpdateCount() == -1 to know if there are more results.
3. Make sure you either close the result sets or use stmt. getMoreResults(Statement.