resultset

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Ramifications for Calling Statement.cancel() on To Forcefully Close Large ResultSet in Java/MySQL

I\'m developing a website that will allow registered users to search through anywhere from 10-20 million records, and those records will be cross referenced against a number of in memory caches (in Ja[详细]

2023-03-22 16:00 分类：问答
Is there a method of doing close from the outside of the method of generating Statement and ResultSet generated from Connection?

I am Japanese. English is unskill开发者_运维技巧ed. I\'m sorry. Is there a method of doing close from the outside of the method of generating Statement and ResultSet generated from Connection?[详细]

2023-03-22 12:59 分类：问答
Resultset Mapping Returns null, SQL statement doesn't

I have an SQL statement like this: SELECT generatedresult,sum(size) as countFROM table1_detail AS w WHERE date > \'2011.06.01\' AND w.l_date < \'2011.06.02\'GROUP BY category ORDER BY countdesc[详细]

2023-03-20 17:14 分类：问答
Should we use insertRow() with acceptChanges()?

Here is a sample code in java: try { /* create connection */ Connection conn = DriverManager.getConnection(url, username, password);[详细]

2023-03-20 15:16 分类：问答
resultSet.getInt() return value on a string containing two ints

I need to parse the value of a database column that generally contains integers, based on the result Set generated from a JDBC call. However, one particular row of the column has two integers in it (i[详细]

2023-03-20 03:46 分类：问答
Java generating query from resultSet and executing the new query

I am trying to use some query result to generate another query and execute the new query but that does not seem to work. The second query is not being executed. Can someone please tell me why? This is[详细]

2023-03-19 05:12 分类：问答
Comparing resultsets in jdbc

In my java code i have two resultsets rs1 and rs2 obtained as follows : rs1 = statement.executeQuery(\"select * from tableA\")[详细]

2023-03-17 03:49 分类：问答
Query optimization with number of tables join and order by with limit clause

I have a query which has multiple tables joined using distincct - left join - order by - limit clause.[详细]

2023-03-16 20:29 分类：问答
I'm Using Camick's ListTableModel and RowTableModel, NO DATA IN JTABLE

I am trying to use the ListTableModel and tried following some examples online and still finding it difficult to show \'resultSet\' data in my Jtable. Im using the model-view-controller method buildin[详细]

2023-03-16 09:43 分类：问答
MySQL - Stored procedure - union selects then update and insert

I need to create a MYSQL stored procedure which will use a UNION query to find an email address in one of five tables.Once the email address is found, the stored procedure needs to update a field in t[详细]

2023-03-15 06:23 分类：问答