crosstab query access

Today, we found a particularly strange problem during the development process: the like query in access is executed in the Access database and the query results can be found, which is executed in the database, select * fromKPProjwhereKpNamelike * test *, but the same statement is null in the c # program. What is the si

1. The question The system has a module that needs to query the data in the Oracle database. It is now implemented by establishing a linked server. SQL Server access Oracle implementation can refer to this article http://www.cnblogs.com/gnielee/archive/2010/09/07/access-oracle-from-sqlserver.html The current query s

Label:1 database access class queries (1) Query A Parameters: Query The primary key of this message; There is a return value: The return value is an entity class; Dr.read (); Execute again, read this line of information and put it into the users type. ///returns the Users entity class type Public users Chayi (string name) { Users u = NULL;

Tags: paging for total hold keyword UI multi-criteria and paging class1. Realize paging function Require_once "./dbda.class.php"; Loading the wrapper file for the database access classRequire_once "page.class.php"; Load the wrapper file for the paging class$db = new Dbda ();$sql = "SELECT count (*) from car";$arr = $db->query ($szts);$page = new Page ($arr [0][0],5); View total data, and the row data displa

Today, I will share with you some of the methods and experiences of using access parametric query. I hope I will be inspired by everyone. I hope the experts will give me more advice if I have written something wrong. ASP. NET uses oledbcommand's new oledbparameter to create a parameter goods QueryASP uses the createparameter method of command to create a parameterized

Use SQL queries in Access It is useful to check SQL syntax using SQL query statements in Access. The procedure is as follows: "Create", "Query Design" Directly close the pop-up "show Table" Find the SQL view: In the Query Command window, enter the command,

1. Database design: All table structures in the database are indexedReason for adjustment:Recently the database pressure is very large, check some big Data scale query speed is very slow, causing the database server CPU has been continuously 90%-100%, the table after adding indexes, the CPU quickly become normal.2, the Big data table to do sub-Library, partition processing:Here's how:1), separate the Big data table from the primary database, create a

The problem that the Access fuzzy query appears, need attention in development!In SQL Server, a fuzzy query is typically such a select * from articletable where authorname like '%jacky% 'But in Access using this statement to execute the time unexpectedly found no results, how is it possible?Later, we looked up the foll

Recently, because the project needs to use access to do database development Web project look at the forum many people asked about access being injected security issues many people are still replacing special characters with replace, But it does not work too much. Today I will use Access parameterized query some of the

Today, a friend asked me how to query the data in an access database for a certain period of time, so I wrote it: SELECT * FROMtable_namewhere [date_name] between # time_a # and # time_ B # the query result is incorrect. For example, He queries data between the period from. Today, a friend asked me how to query the da

Summary: How to use a query to get the name of a database object (Query/form/table/Report/module/macro) Body: (q): How do I use a query to get the name of a database object (Query/form/table/Report/module/macro)? (a): Access system table Msysobjects contains a list of dat

Recent project needs to use access to do database development Web projects Look at the forum and many people asked about access being injected security issues A lot of people are still replacing special characters with replace, but it doesn't make much of a deal Today I'm going to share with you some of the methods and experiences of using access parameterized qu

Today I'm going to share with you some of the methods and experiences of using access parameterized queries Hope for everyone to have some inspiration, there is a wrong place to hope that the experts to teach a lot asp.net use OleDbCommand new OleDbParameter to create parameter goods query ASP uses Command's CreateParameter method to create parameterized query (

Another method for Ajax cross-origin access to XML data-use the YQL query statement, ajaxyql XML data cannot be read through Ajax cross-origin requests on the client by default. The general practice is to write a simple proxy program on the server to read the remote XML data to the local server first, then the client requests from the local server via Ajax. Because we cannot set or modify the environment wh

XML data can not be read by default on the client through Ajax cross-domain requests, the general practice is to write a simple agent on the server, the remote XML data read first to the local server, and then the client from the local server through AJAX request. Since we cannot make any settings or modifications to the environment in which the data source resides, it is difficult to circumvent this problem only through client-side code. However, if the requested data is not XML but a JSON obje