C# :: Combine Query To Show All Data
Sep 22, 2014
So I've been working on this for awhile and FINALLY got it to work. This is my code
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
[Code] ....
As you can see I will have the Name and total right next to eachother.. Problem is I dont want to make a million MySQLCommands for each ID.. Is there a Way I can list all data in each label?
For instance the Select from Text will show all the text from each different ID
and the Select from STOCK-USED as total will show all the total for each ID
Instead of having to list them individually.
Even if I leave it to this
"Select text FROM `parts`";
It selects the 2nd ID in my database and displays its text.. Forgets about the first one completely ...
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Mar 16, 2012
Two questions:
1. I have some vector<unsigned char> containing binary data. I would like to combine them into one std::string. How is the correct way to accomplish this?
This is my best guess for sample code:
Code:
vector<unsigned char> data; //conatins some data
vector<unsigned char> data2; //contains more data
string temp(data.begin(), data.end());
temp.append(data2.begin(), data2.end());
Will this code work with binary data, or will it null terminate?
2. A similar problem.. I have some unsigned char* variables, and I want to combine them into one std::string. How can I accomplish this? will the member append() work here? or will it null terminate? Something like:
Code:
unsigned char* data; //conatins some data
unsigned char* data2; //contains more data
string temp(reinterpret_cast<const char*>(data));
temp.append(string(reinterpret_cast<const char*>(data2)));
Will the above sample code work without null termination?
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Feb 26, 2013
My program reads data from a txt file and it displays the test scores and the sum of the scores, and it also shows the max and min from the scores , so far only one number shows up from the scores instead 10 and i think my sum is wrong too, but i cant get the max and min to work ...
#include <iostream>
#include <iomanip>
#include <string>
#include <fstream>
using namespace std;
void openfile(ifstream &infile);
[Code] .....
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Dec 11, 2013
I am writing a employee payroll program using structures. My program is running but its only showing some of the data.
HERES MY CODE
Code:
#include <iostream>
#include <cstdio>
#include <fstream>
#include <string>
#include <iomanip>
#include <cstring>
using namespace std;
const int SZ = 20; // size of arrays to hold scores
struct payrollStruct {
[Code] ....
And it doesn't show anything from txt file
Code:
40.0 10.00 A1234 Jane Adams
50.0 10.00 L8765 Mary Lincoln
25.5 10.85 W7654 Martha Washington
52.0 15.75 A9876 John Adams
45.0 25.00 W1235 George Washington
[Code] .....
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Jan 14, 2013
I have a buffer which has a virtual width of 1024 pixels with virtual height 768 pixels (actual width stored in GPU.GPU_screenxsize, height in GPU.GPU_screenysize (both uint_32)).
I currently use the following function to plot the pixels to the screen:
inline void GPU_defaultRenderer() //Default renderer {
uint_32 pixel;
int bufferx; //Buffer's x!
int buffery; //Buffer's y!
int bufferxstart; //Buffer's x start!
int bufferystart; //Buffer's y start!
int pspx;
[Code] ...
How to combine the pixels together (blend them into one goal pixel) to get a better view? (Currently it takes the bottom right pixel of the area that represents the goal pixel).
So (x1,y1,x2,y2)->(pspx,pspy) = (bufferystart,bufferxstart,buffery,bufferx)->(pspx,pspy).
Atm this is (x2,y2)->(pspx,pspy)
Btw the pixel format is uint_32 RGBA (only RGB used atm). The psp_graphics_putpixel draws it onto the real VRAM. PSP_SCREEN_ROWS and PSP_SCREEN_COLUMNS represent the destination screen (the real screen)'s height and width in pixels.
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Jan 13, 2015
i tried to combine two programs into one.. in my first program it has one class object and main() and my second program it has only one main()
i want to combine these two into one
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May 21, 2014
update Tag_Master set flag='Inactive' where Tag_no=10;
update Tag_Master set flag='Assigned' where Tag_no=12;
I had these two queries, I just want both of these will fire on same event. Is any other way to write both queries in single query instead of writing two different queries ....
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Jul 19, 2013
How to combine the if statements?
cout<<"Enter a sale number"<<endl;
cin>>rec.sale;
if(cin.fail())
{
cout<<"Enter a number"<<endl;
cin>>rec.sale;
}
[Code]...
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Mar 15, 2014
We're working on classes in my programming class, and I have a question about function calls.
Bascially, I have all my set and get functions set up and ready to go.
I was wondering if it was possible to have the user input a variable while calling a function.
for example
cin >> getname();
the user inputs a value that gets passed into getname.
Or does it have to be something like
cin >> name;
getname(name);
mind you all, this isn't code from my program i'm just spitballing here.
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Jan 6, 2015
how to combine two bytes (each byte is 8 bits wide) in order to get the original value. I am displaying values(from 0 to 500)sent from my microcontroller on the GUI.I can successfully display values from 0 to 255 as this requires just sending a byte. However sending values from 256 to 500 requires sending two bytes. The problem I am having is that I was unable to re-combine the received two bytes in order to get the original value. Below are my lines of code:
int main( void ) // this is the main function inside the microcontroller {
sei();
USI_TWI_Master_Initialise();
Spi_Master_Init();
while(1) // I am using this loop to send 500(111110100) {
Transmitt_Receive(244);//this function sends LOW BYTE of 500(11110100)
_delay_ms(1000);
[code]....
When I combined the two bytes using the above arrangements, instead of getting 500 my GUI displayed 62708.I got the same result when I used BitConverter.
value3 = BitConverter.ToInt32(val,0);
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Jun 17, 2014
I am given 2 methods and they want me to create a stand alone class for sql that will change the sql string.
my question is how can i take these 2 methods and make one class out of them that will used on various other forms.
#1
public string AuthenticateWithDB(CUiPontisDatabaseSpecification pdb, string sUserId, string sPassword,
bool bCreatePersistentCookie)
#2
public static void ChangeConnection(Util.ODBC.ODBCDSN odbcInfo, CPonDatabaseVendorType dbType, string uid, string password)
they want it so they can use it like
CUiHttpSessionManager.SimpleDataConnectionString = SomeNewClass.CreateSimpleDataConnectionString()
where some new class is my new class
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Aug 15, 2013
I want to be able to write a program where I can record user input but combine it with command line arguments. For example I do a simple getline(); and the user types test how to combine it so it could be like test /q and it gives a different output depending on what additional input was added. Can this be done with lots of different inputs?
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Apr 3, 2014
I have two tables
Orders
ID, CreatedDate,CustomerID
1, 03/04/2014, test
OrderDetails
ID,ProductId, ProductName,Quantity,Price,Total
1, 5, Toy, 5, 1.99, 9.95
I have a gridview, im using its 'datasource dropdownlist' to populate it, i have the SQL statement
SELECT Orders.ID, OrderDetails.ProductId, OrderDetails.ProductName, OrderDetails.Quantity, OrderDetails.Price, OrderDetails.Total FROM (OrderDetails INNER JOIN Orders ON OrderDetails.ID = Orders.ID) WHERE (Orders.CustomerId = ?)
where the '?' is parameters source = QueryString, and QueryStringField= email
i have a session that is the customerEmailId, so
string CustomerEmailID = (string)Session["email"];
Response.Redirect("MyAccount.aspx?email=" + CustomerEmailID);//i have tested it and customerEmailid is test
however nothing loads in the GridView
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Aug 2, 2014
I have a C# WPF program that takes a SQL query and populates a column from an Oracle database into a listbox on the form. I would like to be able to compare all items populated in the listbox, and run a SQL query for each item, populating those values into a different listbox.
So far, I have this code:
string sql2 = "select unique apps.fnd_application_all_view.application_name, fnd_responsibility_vl.responsibility_name, fnd_form_functions_tl.user_function_name, fnd_form_functions.function_name, fnd_form_functions_tl.description, fnd_form_functions.type FROM fnd_compiled_menu_functions, fnd_form_functions, fnd_form_functions_tl, fnd_responsibility, fnd responsibility_vl, apps.fnd_application_all_view WHERE
[code]....
I would like to be able to basically take the "Responsibility_Name" value from the first listbox (lstResponsibilities), which is already populated, and use those values to in the "sql2" query to find the "Function_Name" and populate "Function_Name" in the second listbox (lstFunctions).
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Jun 9, 2013
I'm trying to solve the following problem:
Given a query, find all possible tokens, i.e. query-splits
Example:
query = New York Hotel
tokens = {New, York, Hotel, New York, New Hotel, ...., New Hotel York, Hotel New York, ...}
Given a query with word count n, the total number of tokens is:
n + n*(n-1) + n*(n-1)*(n-2) + ... + n! (any explicit formula available for this sum?)
Now, I have came across various code snippets to generate permutations for a string, but never for a sentence.
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Jun 13, 2014
I have table called leavetable where in i have the fields eid, lfrom,lto, reason,status an employee will insert these fields in the leave form except status, status will be updated by admin but there is no unique field in the table so when the admin updates the status as cancel for an id emp001 so whereever this id is present in the table its getting updated to cancel even though it is approved previously.. How to avoid this duplication ?
SqlConnection con = new SqlConnection(Connectionstring);
con.Open();
string sql = "update leavetable set status = '"+status+"' where eid = '"+textBox1.Text+"' and noofdays = '"+textBox5.Text+"'";
[Code] .....
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Nov 16, 2014
I have WCF web service which contains methods for communicating with database (ms sql). For a long time I was using pure sql statements, that aren't secure. It is time to move to parameterized queries. I'm using code-engine.com source code for query builder. Example of it is here: SelectQueryBuilder: Building complex and flexible SQL queries/commands from C# . Which works OK and I have no problems when is used inside of web service.
The problem: I also have asp.net web site which uses this webservice and the main problem is, how to build queries on client side and sent them to web service? I can build query on client side and send dbCommand.commandtext but I then I don't know how to send parameters list to webservice, because it isn't serialized.
This would be used as "universal" method for sql statements. I have others method like getUser(),getUsers(),getPages() but I really need this kind of methods to pass query to it.
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Jul 23, 2014
i'm trying to update multiple table values with same column using one query.
Here's what i've tried so far:
mySql.CommandText = "Update tbl_employees,tbl_emp_additional_info,tbl_allocated_deductions,tbl_benefits,
tbl_cashadvances,tbl_deduction_history,"+
"tbl_dtr,tbl_empabsences,tbl_empstatus,tbl_otherdeductions
,tbl_ots,tbl_payroll_history,tbl_rdcomments,tbl_reversed_deductions,tbl_reversed_deduction_paid "+
"set tbl_employees.emp_id=@newemp_id,tbl_emp_additional_info.emp_id=@newemp_id,tbl_allocated_deductions.
[code]...
I've also tried removing all the other "and" operators but still no luck.It doesn't throw in exception yet it doesn't update my tables column values.
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Jan 15, 2015
I am displaying data from an Excel Spreadsheet through an ASP.net web form using C#. I would like to run an SQL query on the data, but am having trouble figuring out how to use a string in my query.
Here is the code I am running in my .aspx.cs file. I am also using a .aspx to display the data in a GridView.
public partial class ExcelAdapter : System.Web.UI.Page {
protected void Page_Load(object sender, EventArgs e) {
String sConnectionString = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + Server.MapPath("ExcelCSTest.xls") + ";" + "Extended Properties="Excel 8.0;HDR=Yes;IMEX=1"";
[Code] ....
Ideally, I would like to add a WHERE clause to my string (string sSQL = "SELECT * FROM [Sheet1$A1:D14]"/> in order to query the current month and display the row of said month from the Excel Spreadsheet.
I have attempted to use a DataAdapter to insert the string into the query, but could not figure out how to conform my code to work with it.
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Oct 11, 2014
I'm new to c# and i'm using vs 2013 and access database..my i need to do multiple update records after I filtered the records in datagridview
In my database table I have these fields ID(PK/autonumber), EID,Date,Day,Daystatus..
In my form I have a button and it's fucntion is filter by date using bidingsource.fiter and this was the result
EID------Date-----------Day---Daystatus
10175--10/11/2014---sat--------regular
10176--10/11/2014---sat--------regular
10177--10/11/2014---sat--------regular
10178--10/11/2014---sat--------regular
what I want to happen is when I click another button called "Apply to all" I want to Update all the daystatus to "Legal Holiday" of the filtered records..I know how to update one by one using simple update..but I need to do the multiple update..
I tried to make a code but it was updating all the records not the filtered only here's my code:
try {
OleDbCommand command = new OleDbCommand();
connection.Open();
command.Connection = connection;
string query = "SELECT EID From EmployeeTable";
command.CommandText = query;
String a = "Legal Holiday";
[Code] ......
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Aug 27, 2014
I am trying to query an Informix database using a List<T> collection's elements as variables. I can build the list and connect to the database, but I am unsure how to iterate through the list and query the database for each item in the collection.
My list is of type string, and contains Order Numbers. I want to query item information for each order number in the list.
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May 15, 2012
I am designing a database query and need simplification to the algebra:
Code:
((x > u) && (x < y)) || ((z > u) && (z < y)) || ((u > z) && (y < x))
And these are always true:
Code:
z > x
u > y
It's a range overlap algorithm.
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Oct 29, 2013
I entered to Visual C++ 2010. Now my intention is to prepare a LINQ Query to select a distinct value from a datatable...
In C# My Query
============
var ProjLnkQry = (from P in MyClass1.ProjTbl.AsEnumerable() select P["proj_name"]).Distinct().ToList();
The above query I try to convert it into VIsual C++
auto DistDepQry=(from v1 in MyGlobalData::ProjectTbl::AsEnumaerable() select v1["depart_name"])->Distinct()->ToList();
But not succeeded.... I found the error like : "from" undeclared Identifier.....
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Apr 14, 2015
I am trying to query dates between two textbox values converted to datetime in C#. The dates are returning in the correct datetime and no conversion problem exists there.
However when I run the below LINQ to SQL query in C# it returns no enumerable results. But if I take the below code:
DbCommand dc = dbHistoryContext.GetCommand(qryRes);
Console.WriteLine(dc.CommandText);
and get the results as a string of text and cut and paste that into the SQL Server Management studio and execute it - then it works. What do I need to do to search between two dates so that it properly works. The field is of format Date in SQL Server if that matters and the fields being used to pass the information to it are DateTime. The compiler doesn't show any errors but it just doesn't return results.
var qryRes = (from res in dbHistoryContext.tblR
where res.updateddate >= dtDateFrom.Date && res.updateddate <= dtDateTo.Date
select res);
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Oct 3, 2012
I am trying to open an Excel file, refresh the query behind it and then save and close the file in C#.
I have the following but I am getting errors on the
Application excel = new Application()
section:
Application excel = new Application();
Workbook theWorkbook = excelFile.Workbooks._Open(txtLocation.Text, 0, false, 5, System.
Reflection.Missing.Value, System.Reflection.Missing.Value, false, System.
[Code] .....
I have added the Microsoft.Office.Interop.Excel reference, but still have the issue?
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Feb 21, 2014
private void update_Click(object sender, EventArgs e) {
OleDbConnection conn = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;
Data Source=C:UsersshobhitDocumentsEnvironment_Monitoring.accdb;
Jet OLEDB:Database Password=divya6");
String sdat = dateTimePicker1.Value.ToShortDateString();
String la = labs.SelectedItem.ToString();
[Code] ....
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