1. Asked: July 1, 2023In:

    How to connect Django project to the database?

    Meet Pundit
    This answer was edited.

    Django uses SQLite as its default database. Use the following commands to link your project to this database: python manage.py migrate (migrate command looks at the INSTALLED_APPS settings and creates database tables accordingly) python manage.py makemigrations (tells Django you have created/ changeRead more

    Django uses SQLite as its default database. Use the following commands to link your project to this database:

    1. python manage.py migrate (migrate command looks at the INSTALLED_APPS settings and creates database tables accordingly)
    2. python manage.py makemigrations (tells Django you have created/ changed your models)
    3. python manage.py sqlmigrate <name of the app followed by the generated id> (sqlmigrate takes the migration names and returns their SQL).
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  2. Asked: July 1, 2023In:

    Which method or service would you prefer if you want to transfer data to a long distance?

    dishach Explainer

    To move data over long distances using the internet to an Amazon Simple Storage Service (S3) bucket, you can use Amazon S3 Transfer Acceleration.

    To move data over long distances using the internet to an Amazon Simple Storage Service (S3) bucket, you can use Amazon S3 Transfer Acceleration.

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  3. Asked: July 1, 2023In:

    What are the benefits of DevOps Consultation services?

    dishach Explainer

    DevOps consulting services provide an operational strategy that is suited to your organization's unique needs and goals. This approach allows for a seamless transition and enhances the advantages of DevOps adoption. DevOps consulting services promote cooperation, breaking down barriers, and establisRead more

    DevOps consulting services provide an operational strategy that is suited to your organization’s unique needs and goals. This approach allows for a seamless transition and enhances the advantages of DevOps adoption.

    DevOps consulting services promote cooperation, breaking down barriers, and establishing a culture of shared accountability and continuous learning. Consultants engage with teams to facilitate effective communication, cooperation, and transparency, thereby fostering a DevOps-friendly culture.

    Organizations can adapt to shifting demands, handle higher workloads, and assure constant performance by creating scalable and robust infrastructures.

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  4. Asked: July 1, 2023In: ,

    Is it possible to change the private IP addresses of an EC2 while it is Running/Stopped in a VPC?

    dishach Explainer

    Yes, it is possible to change the private IP address of an Amazon Elastic Compute Cloud (EC2) instance while it is running or stopped in a virtual private cloud (VPC).

    Yes, it is possible to change the private IP address of an Amazon Elastic Compute Cloud (EC2) instance while it is running or stopped in a virtual private cloud (VPC).

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  5. Asked: July 1, 2023In:

    Based on several conditions, how can we replace one column value with another one in Pyspark?

    Peggy Professional

    For NULL condition we use, isnull() and .otherwise( df.col1 ) For example: df = df.withColumn("col1", when( isnull(df.col1) & (df.col2 == df.col3), df.col4)).otherwise( df.col1 )  

    For NULL condition we use, isnull() and .otherwise( df.col1 )

    For example:

    df = df.withColumn("col1", when( isnull(df.col1) & (df.col2 == df.col3), df.col4)).otherwise( df.col1 )

     

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  6. Asked: July 1, 2023In:

    How to multiply column values of arrays in postgreSQL?

    dishach Explainer

    How about this one? CREATE TABLE gt(val INT[]) INSERT INTO gt VALUES ('{1,2,3}'), ('{1,2,3}'), ('{3,7,4}') UPDATE gt SET  val = array(select 100 * unnest(val)) SELECT * FROM gt; Which gives the output: val {100,200,300} {100,200,300} {300,700,400}

    How about this one?

    CREATE TABLE gt(val INT[])
INSERT INTO gt VALUES ('{1,2,3}'), ('{1,2,3}'), ('{3,7,4}')
UPDATE gt SET  val = array(select 100 * unnest(val))
SELECT * FROM gt;

    Which gives the output:

    val
    {100,200,300}
    {100,200,300}
    {300,700,400}
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  7. Asked: July 1, 2023In:

    How can I remove double quotes from each line of the csv file with pandas?

    Peggy Professional
    This answer was edited.

    Try to implement this code and check if it works: df = ( pd.read_csv("file.csv", header=None, quoting=3) # QUOTE_NONE .replace('"', "", regex=True).iloc[:, :-1] # .set_axis(["col1", ...]) # optional )   Output:print(df)  0   1    2   3 0 ABC 111  NaN NaN 1 DEF 222  NaN NaN

    Try to implement this code and check if it works:

    df = (
    pd.read_csv("file.csv", header=None, quoting=3) # QUOTE_NONE
        .replace('"', "", regex=True).iloc[:, :-1]
         # .set_axis(["col1", ...]) # optional
)

     

    Output:print(df)

       0   1    2   3
0 ABC 111  NaN NaN
1 DEF 222  NaN NaN
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