[Open source code and dataset] scene Word detection and recognition (from Mclab) [Open source code and dataset] scene Word detection and recognition (from Mclab)
End to end scene text recognition M. Liao, B. Shi, x. Bai, X. Wang, W. Liu. TEXTBOXES:A Fast text detector with A single deep neural network.In:proceedings of the 31st AAAI Conference on Artificial Intelligence (AAAI '), San Francisco, California,
oracle| Stored Procedures | data
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Delphi+oracle Report Solution (i) Delphi stored procedures that invoke Oracle (striped return cursors, no value two)
Keywords: delphi, Oracle Stored procedures, cursors, return data sets, reports
Note: Delphi 6+ Oracle 8.1.6
I. Create package and package body
1. Attach: Build table Aaclass for the following test
CREATE TABLE Aaclass (CID V
The relationship between the structure definition of data dataset and the instance
Www.yescnet.com CNET Chinese web
In. NET database development, it is unavoidable to use Datasets (datasets), when reading the MSDN Learning DataSet, because there is no clear distinction between the definition and the instance of the dataset, in the operation, there is always a
Data
(i). Description
There is a problem with programming: Occasionally, for some reason, a database table needs to be changed to a field name. For example: change: Name to: PersonName.
The programmer then turns on all the code involved and finds something similar: DS. Table[0]. row[n][the statement "Name", modified to: DS. Table[0]. row[n]["Name"].
In fact, there is no need to do so, just add a structure with a dataset on the OK. Modifying only one
Ado
New features of Ado.net 2.0 dataset and DataTable
1. Faster execution efficiency of the new indexing engineThe following code takes 157 seconds in 2003 and can be completed in 2005 in 11 seconds:
DataSet ds = new DataSet ();
Ds. Tables.add ("BigTable");Ds. Tables[0]. Columns.Add ("ID", Type.GetType ("System.Int32"));Ds. Tables[0]. columns["ID"]. Unique = true
SqlConnection database Connection object: Only joins for other operations SqlDataAdapter data adapter object, which is to execute a query statement (SELECT statement) with a certain SqlConnection, and put it in a dataset SqlCommand data Command object (select,insert,delete,update, etc.) sqlcommand.parameter attribute pass SQL parameter executescalar: Executes the query, returns a single field, For example, the sum of the results, average, the maximum
An important reason Apache Spark attracts a large community of developers is that Apache Spark provides extremely simple, easy-to-use APIs that support the manipulation of big data across multiple languages such as Scala, Java, Python, and R.This article focuses on the Apache Spark 2.0 rdd,dataframe and dataset three APIs, their respective usage scenarios, their performance and optimizations, and the scenarios that use Dataframe and datasets instead o
Released on: 1/14/2005 | updated on: 1/14/2005
David burgett
This document assumes that you are familiar with ADO. NET and Visual Basic. net.
Summary
Many technologies provided by ADO. Net can improve the performance of medium-sized dataset applications and make it easier to build such applications. Dataset is a flag of the ADO. Net object model and can be used as a small, disconnected copy of the data sou
Tags: rom log customers param pen Read reader specify Sele1 God said, to connect to the database, so there is a SqlConnection (database connection, configuration connection string, such as user name password)2 God says, to execute the SQL statement. Then there is the SqlCommand, directly translated into SQL commands. Each SqlCommand has CommandText and parameters text and parameters. Fill out this command, then execute to execute. Of course, make sure that the connection is open in order to exec
DataSetRepresents the cache of data in memory.
PropertyTables gets a collection of tables that are contained in the DataSet.
Ds. tables["SJXX"]
DataTable
Represents a table of data in memory.
Public propertiesColumns gets the collection of columns that belong to the table.
The dataset obtains the dataset to which this table belongs.
DefaultView gets a cu
XML this time to write the project every time to use XML to save some configuration, and each operation of XML is very cumbersome, no database so smooth. It was later discovered that using a dataset to manipulate XML was convenient and flexible, so it wrote a class that manipulated XML to deal with general XML operations (source download attachments).
1 Basic IdeasIn fact, using dataset to manipulate XML, i
Check for changes with the HasChanges method.
First use the HasChanges method to detect the affected rows (return bool)
if (!mydataset.haschanges (datarowstate.modified)) return;
To create a temporary dataset
DataSet Xdataset;
Using the GetChanges method of the dataset to get the affected rows
Xdataset = Mydataset.getchanges (datarowstate.modified);
detecting
xml| Original
This time the project writes each time to use the XML to save some configuration, but each operation XML is very troublesome, does not have the database so conveniently. It was later discovered that using a dataset to manipulate XML was convenient and flexible, so it wrote a class that manipulated XML to deal with general XML operations (source download attachments).
1 Basic IdeasIn fact, using datas
field {get;set;} Do not write the display does not come out//foreach (DataRow datarow in DataTable.Rows)// {
//Console.WriteLine (datarow["id"]+ "" +datarow[1]); // //encapsulate each row of data into the City class//mycitylist. ADD (new cities () {//Id=int. Parse (datarow["id"). ToString ()),//Cityid=int. Parse (datarow["Cityid"). ToString ()),//city=datarow["City"]. ToString (),//Provinceid = Int. Parse (datarow["Provinceid"). ToString ())// }); // }
The previous article introduced how to use LINQ to manipulate weak dataset,
This blog post describes how to use LINQ to manipulate a strongly Typed Dataset,
What is a strong dataset?
In fact, a dataset file (such as mydataset. XSD) is used to produce a dataset,
In th
Use spry XML Dataset
The spry XML dataset is a javascript object that can be used to display data in XML data files on a web page. You can use this data to update data in the main and detailed areas of the page based on the visitor's choice. You can access Adobe livedocs to get the latest version of this article. Basic Summary of spry XML Dataset
The spry
Although Ado.net is a successor to the. NET platform, the difference between the two is great. DataSet objects in the Recordset objects and ado.net that are highlighted in ADO. The recordset is also a very flexible object, Microsoft launched it also painstaking, such as: The Recordset can be offline operation of the database tutorial, good performance, high efficiency, etc. these all let the then programmer spirits. Although the recordset is already c
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