Posts (page 103)
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7 min readTo receive messages from a streaming server, you typically need to establish a connection with the server using a communication protocol such as HTTP, WebSockets, or MQTT. Once the connection is established, the server will start sending messages to your client application.You may need to subscribe to specific channels or topics to receive relevant messages from the server.
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5 min readTo get the maximum value from an Oracle database, you can use the MAX function in a SQL query. This function allows you to retrieve the highest value within a specific column of a table. Simply include the MAX function followed by the column name in the SELECT statement of your query. This will return the maximum value from that column. Additionally, you can use the ORDER BY clause to sort the results in descending order and retrieve the highest value at the top of the list.
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5 min readTo send a string parameter from C# to PowerShell, you can use the AddParameter method of the PowerShell class provided by the System.Management.Automation namespace. First, create an instance of the PowerShell class and add the parameter using the AddParameter method. For example, if you want to use the string "Hello World" as a parameter in a PowerShell script, you can add it like this: using System; using System.Management.
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6 min readTo save streaming data to InfluxDB, you can use various methods depending on your setup and requirements. One common approach is to use the InfluxDB client libraries that support writing data to InfluxDB from your streaming application. These client libraries are available in multiple programming languages and provide an easy way to push data into InfluxDB in real-time.Another method is to use InfluxDB's HTTP API to directly send data to the InfluxDB server.
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3 min readTo force the copy of a file using PowerShell, you can use the Copy-Item cmdlet with the -Force parameter. This parameter will overwrite any existing file with the same name in the destination folder without prompting for confirmation. Simply specify the source file path and the destination folder path as arguments for the Copy-Item cmdlet, along with the -Force parameter, and the file will be copied forcefully.
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3 min readIn Oracle, you can identify weekdays by using the TO_CHAR function with the DAY format model. This function converts a date value to a string in a specific format. By applying the TO_CHAR function to a date column and specifying the DAY format model, you can extract the day of the week from the date and determine whether it is a weekday or a weekend day.
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5 min readTo listen to a streaming API in Spring Boot, you can use the WebClient class provided by Spring. You can create a WebClient bean in your application configuration and use it to make requests to the streaming API. When making a request, you can use the retrieve() method to stream the response data as it is received.You can then use the BodyHandlers.forServerSentEvents() method to handle the response as a stream of Server-Sent Events.
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6 min readTo convert a datetime to a string in PowerShell, you can use the built-in ToString() method on a DateTime object. This method allows you to specify a format string to customize the output. For example, you can use the following code: $now = Get-Date $stringDate = $now.ToString('yyyy-MM-dd HH:mm:ss') This will convert the current date and time to a string in the format yyyy-MM-dd HH:mm:ss.
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3 min readTo convert decimal numbers to time in Oracle SQL, you can use the following steps:First, multiply the decimal number by 24 to convert it to a 24-hour format.Next, extract the hour part by using the TRUNC function.Then, calculate the minute part by multiplying the remaining decimal part by 60 and extracting the integer value.Finally, concatenate the hour and minute parts together to get the time in HH:MM format.
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3 min readTo import a certificate using PowerShell, you can use the Import-Certificate cmdlet. First, make sure you have the certificate file saved on your local machine. Then, open PowerShell and run the following command: Import-Certificate -FilePath C:\path\to\certificate.cer -CertStoreLocation "Cert:\LocalMachine\My" Replace "C:\path\to\certificate.cer" with the actual path to your certificate file. The CertStoreLocation parameter specifies where the certificate should be imported to.
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4 min readTo execute an Oracle procedure in JDBC, you need to follow these steps:Connect to the Oracle database using JDBC.Create a CallableStatement object by calling the prepareCall() method on the Connection object. Pass the SQL query that calls the procedure as an argument to the prepareCall() method.Set any input parameters for the procedure by calling the setXxx() methods on the CallableStatement object, where Xxx is the data type of the parameter.
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5 min readTo create a TCP stream in Rust, you can use the standard library's TcpStream module. First, you need to import the necessary libraries by adding this line to your code: use std::net::TcpStream; Next, you can create a TCP stream by calling the connect() method on the TcpStream struct. This method takes a network address as a parameter, which can be an IP address and port number combination. Here's an example: let stream = TcpStream::connect("127.0.0.1:8080").