resultset

Send db mail task fails in SSIS Package with errors related to the parameter

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问题 I am trying to execute this sql task in SSIS package which send an email when the file name is not found. I have declared this user-defined variable "@PackageStartTime" in my ssis package. But when my SSIS package hit this task it fails with following error. "Executing query DECLARE @PackageStartTime Varchar(250) SET @Packag...." failed with the error.: "Parameter name is unrecognized." Possible failure reasons: Problem with the query, "ResultSet" Property not set correctly, parameters not

Store each row in a resultset as an object in an array

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问题 Essentially my problem is that I am returning a resultset from a jdbc query and i want to store each row as an object in an array. when i try to loop through the resultset- it only saves on object in the array- i suppose this is obviously due to the fact that the while loop is within the for loop- i have tried re-jigging the loops a few times but with no joy. Would be great to find a less complex and convuluted way of getting the objects passed into the array. ResultSet rs = st.executeQuery

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1、定义 JAVA中Resultset是一个类而不是一个方法。结果集(ResultSet)是数据中查询结果返回的一种对象，可以说结果集是一个存储查询结果的对象，但是结果集并不仅仅具有存储的功能，他同时还具有操纵数据的功能，可能完成对数据的更新等。 2、使用结果集读取数据的方法主要是getXXX()，它的参数可以是整型，表示第几列（是从1开始的），还可以是列名。返回的是对应的XXX类型的值。如果对应那列时空值，XXX是对象的话返回XXX型的空值，如果XXX是数字类型，如Float等则返回0，boolean返回false。使用getString()可以返回所有的列的值，不过返回的都是字符串类型的。XXX可以代表的类型有：基本的数据类型如整型(int)，布尔型(Boolean)，浮点型(Float,Double)等，比特型（byte），还包括一些特殊的类型，如：日期类型（java.sql.Date），时间类型(java.sql.Time)，时间戳类型(java.sql.Timestamp)，大数型(BigDecimal和BigInteger等)等。还可以使用getArray(int colindex/String columnname)，通过这个方法获得当前行中，colindex所在列的元素组成的对象的数组。使用getAsciiStream(int colindex/String

JDBC ResultSet Type_Scroll_Sensitive

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问题 I have been playing with JDBC and the different types of ResultSet and have a question about making it TYPE_SCROLL_SENSITIVE (this question is to do with the sensitive part, not the type scroll part). The theory says changes in the database are reflected in the ResultSet and vice-versa but this is not happening for me. Here is something I've tried: Connection conn = null; try { DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver()); String url = "jdbc:oracle:thin:@oracle

Convert SQLCEResultSet resultview to datatable

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问题 Is it possible to convert a sqlceresultset.resultview to datatable? 回答1: Not tested, but this should do what you need: public DataTable ResultSetToDataTable(SqlCeResultSet set) { DataTable dt = new DataTable(); // copy columns for (int col = 0; col < set.FieldCount; col++) { dt.Columns.Add(set.GetName(col), set.GetFieldType(col)); } // copy data while (set.Read()) { DataRow row = dt.NewRow(); for (int col = 0; col < set.FieldCount; col++) { int ordinal = set.GetOrdinal(GetName(col)); row[col]

How to display a list in a .JSP file?

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问题 After an hour of solid research I still can't do this. This is my Servlet code: package com.fdm.ProjectWeb.RedirectServlets; import java.awt.List; import java.io.IOException; import java.sql.ResultSet; import java.sql.SQLException; import javax.naming.spi.DirStateFactory.Result; import javax.servlet.RequestDispatcher; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import

How to handle huge result sets from database

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问题 I'm designing a multi-tiered database driven web application – SQL relational database, Java for the middle service tier, web for the UI. The language doesn't really matter. The middle service tier performs the actual querying of the database. The UI simply asks for certain data and has no concept that it's backed by a database. The question is how to handle large data sets? The UI asks for data but the results might be huge, possibly too big to fit in memory. For example, a street sign

Modifying Records into Database Through Jtable

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问题 I created a Jtable using Netbeans 7.1. The table created a default model as below table.setModel(new javax.swing.table.DefaultTableModel( new Object [][] { {null, null, null, null}, {null, null, null, null}, {null, null, null, null}, {null, null, null, null} }, new String [] { "Title 1", "Title 2", "Title 3", "Title 4" } )); I also added the following lines of code to populate data from an Sqlite Database. public void tabl() { try { stmt=conn.createStatement(); String sql2="SELECT * FROM

Add custom fields to Maximo Result Set

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问题 I'm using Maximo 7.5 and I added few columns to an custom table. How to get those columns in Startcenter result set. The new fields are visible in Workorder application 回答1: If you're on an older fix pack, you'll need to insert a row into RESULTSETCOLS, as demonstrated by the insert statement below which was excerpted from this Technote. Note that you will need to adjust the values for the first three columns to suit your needs. insert into resultsetcols ( app, attribute, maintable,

Error displaying the autonumber field from a ResultSet

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问题 The movie which is inputted is successfully saved to moviesTbl table but then when I try to display the autonumber field 'MovieID' I retrieve errors. public void updateMovies(String update, String title, java.sql.Date releaseDate, String genre) throws SQLException { Connection connection = dc.DatabaseConnection(); PreparedStatement statement = connection.prepareStatement(update); //the insert statement is prepared statement.setString(1, title); //each attribute is set individually statement