Tutorial by Examples: s

select sysdate from dual

select :start_value + level -1 n from dual connect by level <= :end_value - :start_value + 1

import matplotlib.pyplot as plt import numpy as np # generate 1000 data points with normal distribution data = np.random.randn(1000) plt.hist(data) plt.show()

You can customize parsing rules using different options in WITH clause: BULK INSERT People FROM 'f:\orders\people.csv' WITH ( CODEPAGE = '65001', FIELDTERMINATOR =',', ROWTERMINATOR ='\n' ); In this example, CODEPAGE specifies that a source file in UTF-8 f...

BULK INSERT command can be used to import file into SQL Server: BULK INSERT People FROM 'f:\orders\people.csv' BULK INSERT command will map columns in files with columns in target table.

You can read content of file using OPENROWSET(BULK) function and store content in some table: INSERT INTO myTable(content) SELECT BulkColumn FROM OPENROWSET(BULK N'C:\Text1.txt', SINGLE_BLOB) AS Document; SINGLE_BLOB option will read entire content from a file as single cell. ...

Yu can define format of the file that will be imported using FORMATFILE option: INSERT INTO mytable SELECT a.* FROM OPENROWSET(BULK 'c:\test\values.txt', FORMATFILE = 'c:\test\values.fmt') AS a; The format file, format_file.fmt, describes the columns in values.txt: 9.0 2 1 SQ...

You can use OPENROWSET to read content of file and pass it to some other function that will parse results. The following example shows hot to read entire content of JSON file using OPENROWSET(BULK) and then provide BulkColumn to OPENJSON function that will parse JSON and return columns: SELECT boo...

follow these step to creating Custom Framework in Swift-IOS: Create a new project. In Xcode Choose iOS/Framework & Library/Cocoa Touch Framework to create a new framework click next and set the productName click next and choose directory to create Project there add code and resources to c...

There’s a tempting existing field called profile that is added by default when a new user registers. This field was historically intended to be used as a scratch pad for user-specific data - maybe their image avatar, name, intro text, etc. Because of this, the profile field on every user is automati...

A basic implementation for singly-linked-list in java - that can add integer values to the end of the list, remove the first value encountered value from list, return an array of values at a given instant and determine whether a given value is present in the list. Node.java package com.example.so....

Following setup ensures that testing framework (PHPUnit) uses :memory: database. config/database.php 'connections' => [ 'sqlite_testing' => [ 'driver' => 'sqlite', 'database' => ':memory:', 'prefix' => '', ], . . . ./phpun...

As with everything in Windows Azure, You have to have a Windows Azure account and an Azure Subscription. After you have both, go to https://portal.azure.com. From here, you can add new resources to your Azure subscription. Click New on the left menu.A new blade will be added to the right of you...

READ data-file

This is a contrived sample. It sorts records based on an ALPHABET that has upper and lower case characters together, with A and a swapped compared to the other letters. This was done on purpose to demonstrate the possibilities. The SORT algorithm reader retrieves records using RELEASE in the INPU...

This is a seedwork sample. The SORT OUTPUT PROCEDURE could manipulate the sorted records before they are returned to the write portion of the internal COBOL sort algorithm. In this case, no transformation is done, work-rec is directly moved to out-rec. GCobol >>SOURCE FORMAT IS FIXED ...

You may want to read a DataFrame from a CSV (Comma separated values) file or maybe even from a TSV or WSV (tabs and whitespace separated files). If your file has the right extension, you can use the readtable function to read in the dataframe: readtable("dataset.CSV") But what if your ...

Data sets often contain comments that explain the data format or contain the license and usage terms. You usually want to ignore these lines when you read in the DataFrame. The readtable function assumes that comment lines begin with the '#' character. However, your file may use comment marks like ...

Assuming you have a model that looks like the following, we will get up an running with a simple barebones read-only API driven by Django REST Framework ("DRF"). models.py class FeedItem(models.Model): title = models.CharField(max_length=100, blank=True) url = models.URLField(b...

To separate API logic from the component, we are creating the API client as a separate class. This example class makes a request to Wikipedia API to get random wiki articles. import { Http, Response } from '@angular/http'; import { Injectable } from '@angular/core'; import { Observabl...