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Development

Finding Sha1 Key, “Illegal option: Keytool -List”

I need to find the SHA1 key for Google Signin, When I use the code “keytool -list -v \ -alias androiddebugkey -keystore %USERPROFILE%.android\debug.keystore” it shows me “Illegal Option:Keytool listenter image description here

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Development

How to get multiple Map data or Object’s document data in firestore android studio

I just want to get all the data of products(the map type) but i don’t know how to get those data simultaneously using for loop. Below was my tried code but it is giving me an exception of ‘java.lang.String cannot be cast to java.util.Map’ . Also I want to know if this is safe to […]

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Development

SPOJ – Life, the Universe, and Everything. Why this code not accepted?

I don’t understand why they say this as a wrong answer #include <stdio.h> using namespace std; int main() { int i; while (i != 42) { scanf(“%d\n”, &i); printf(“%d\n”, i); } return 0; } But they accepted if scanf is on the while loop. while (scanf(“%d\n”, &i) > 0 && i != 42) Please explain […]

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Development

Execute ‘then’ in ‘fetch’ only if a condition is met

I have an api returning bytearray, using saveAs for saving the bytearray to pdf. The following is sample code. My requirement is, can I do away with two thens ? I tried putting the saveascode in first then, even though a pdf is downloaded, it is not able to load. I have some headers, which […]

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Development

How to daily reset a sequence (ir.sequence object) in Odoo 12?

I have a custom module in Odoo 12 and I need to create sequences for a model records every day so, I need to reset it daily at 00:00 pm. I tried to use scheduler but I can not find which field should I override or reset the sequence I want. As I viewed the […]

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Development

How to gather/ reshape incomplete dataframe across multiple columns

I have a large dataframe with 3 blocks of incomplete data. I want to convert this dataframe from a wide to long format using R. Example df <- structure(list(V1 = 1234:1240, V2 = structure(1:7, .Label = c(“text1″,”text2”, “text3”, “text4”, “text5”, “text6”, “text7”), class = “factor”), V3 = structure(c(1L, 1L, 1L, 1L, NA, NA, NA), .Label […]

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Database Development

template0 access privileges and pg_database

PostgreSQL has 2 template databases: template0 that can’t be modified, and template1 that is modifiable and is used to create every new database. So I was playing with privileges, granting and revoking, and it caught my attention that, at least in my Docker image (as well as locally installed PostgreSQL), both template database have the […]

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Database Development

How to check if username exists in my firebase database already?

Cannot get Firebase to identify a username that has already been entered. The code below shows that I am trying to compare the username entered with a DataSnapshot of my database. The code doesn’t seem to pick up usernames that are entered. Is the code wrong? private boolean mSwitch = false; public void checkInfo(View view){ […]

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Development

How to change the name of a variable in a for loop

I would like to change the name of a variable within a for loop, using the loop index in the name of the variable. I’ve tried the following syntax: A= [1,2,3] for i = 1:3 global x{i} x{i}=A[i] end This isn’t the right syntax, and googling has not led me to the correct syntax. I’ve […]

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Development

Python ibm_db Exception: [IBM][CLI Driver] SQL4917N Element “SQLE_CLIENT_INFO_WRKSTNNAME” in the option array is not valid. SQLCODE=-4917

I get the following error when trying to connect to db2 using the ibm_db python package. [IBM][CLI Driver] SQL4917N Element “SQLE_CLIENT_INFO_WRKSTNNAME” in the option array is not valid. SQLCODE=-4917 This problem is specific to my new machine (2019 MacBook Pro). I set up this machine from a Time Machine backup of my old machine (Late […]