dbConnect | Database for Humans | Database library
kandi X-RAY | dbConnect Summary
kandi X-RAY | dbConnect Summary
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Top functions reviewed by kandi - BETA
- Update data in table
- Build the where clause
- Commit changes to the database
- Increment the given columns
- Delete records from a table
dbConnect Key Features
dbConnect Examples and Code Snippets
Lines of Code : 5License : Strong Copyleft (CC BY-SA 4.0)
Copyfrom sqlalchemy.dialects import postgresql
# redacted
dbPool = pool.QueuePool(dbConnection, max_overflow=10, pool_size=5, pre_ping=True, dialect=postgresql.dialect())
# redacted
nbr_predicted_list = []
passes = 0
batchStep = 10
while True:
...
if conf < 70:
#Instead of this:
#call function to insert into database
#insertProfile(nbr_predicted)
#DO:
passes++
nbr_predicted_list.append(nbrlocal:
dataconnection:
profile: 'my_personal_profile'
aws_access_key_id: 'my_aws_key'
aws_secret_access_key: 'my_aws_secret_key'
region: 'eu-west-1'
database: 'default'
s3_bucket: 's3://my/s3/bucket/'
shinyapmariadb_connection = mariadb_connection()
mariadb_connection = dbconnect()
def initialize():
o_window = lf2Tk()
username = StringVar()
password = StringVar()
return o_window, username, password
def close_dialog(o_window):
o_window.destroy()
...
def initialize():
rimport azureml.dataprep as dprep
ds = dprep.MSSQLDataSource(server_name=,
database_name=,
user_name=,
password=)
dataflow = dprep.reimport tkinter as tk # use these imports so you do not overwrite other imports.
import tkinter.ttk as ttk # use these imports so you do not overwrite other imports.
import tkinter.messagebox as messagebox # avoid import *. Its normally from PyQt4 import QtCore, QtGui
data = [
["Male", 0, "cheap", "Low", "Bus"],
["Male", 1, "cheap", "Medium", "Bus"],
["Female", 1, "cheap", "Medium", "Train"],
["Female", 0, "cheap", "Low", "Bus"],
["Male", 1, "cheap", class DB:
def __init__(self):
self.dbconn = None
def get_last(self, n)
try:
cur = self.dbconn.cursor()
sqlQuerygetlast = "SELECT * FROM data ORDER BY id DESC LIMIT {}".format(n)
class MyConnection(cx_Oracle.Connection):
def cursor(self, scrollable=False):
return MyCursor(self, scrollable)
class MyCursor(cx_Oracle.Cursor):
def execute(self, sql, args):
result = super(MyConnection, self).eCommunity Discussions
Trending Discussions on dbConnect
QUESTION
I am trying to print the selected value from a query in VB6 this is my code
...ANSWER
Answered 2022-Mar-03 at 11:19You've set rs to nothing before trying to read the status field from it. Re-order your code to read:
QUESTION
I would like to filter a SQL database based whether a regular expression appears within any column. I would like to specify the regex as a variable; however it is read as a literal string. I am having trouble getting the regex in as a variable. Thank you for your help!
Resources I've consulted:
Note: I had trouble making a reprex using the mtcars dataset, following https://www.tidyverse.org/blog/2018/01/dbplyr-1-2/. I get the error: "Error: str_detect() is not available in this SQL variant". I cannot share a reprex using my actual SQL database. As such, below is a pseudo-reprex.
...ANSWER
Answered 2022-Feb-21 at 20:29This might depend a lot on the flavour of SQL you are using. This issue mentions a translation for str_detect and also provides an alternative.
Testing for SQL Server:
QUESTION
I need some clarification on how to properly send queries to my database within RShiny...
I have build-up an application in which anyone can create an account and then write some informations in a dataframe before saving those rows to my database.
The app works perfectly well when testing my it with a single user but shows some issues when several users send data to my database at the same time. All the informations sends are duplicated 2 to 10 times in postgresql...
For instance if I add an unique observation of 5 individuals of species "A" with an observation date on the 25th of february I will get 3 rows (sometimes it can be up to 10 duplicates) in my database instead of one. (like shown in the table below):
...ANSWER
Answered 2022-Mar-08 at 09:57Below please find a reproducible example using library(RSQLite) - just switch back to your postgres connection / schema.
I don't think the issue is pool related. I guess (I can't verify without your DB) your call to rbind is problematic - as it sends multiple lines if the reactiveVal was used before.
Furthermore, in a case like this it is much more efficient to create a cross-session reactive (here reactivePoll) to share the DB information among sessions, instead of having each session query the DB every second.
QUESTION
I am sending my data to MongoDB via Mongoose. Now, during the fetch of API route for it, an error is thrown.
Code
...ANSWER
Answered 2022-Feb-11 at 00:32This issue occured recently and apparently its happening with latest version of node.
So you can change the version of node to older version and it will be fixed. I am using node version v14.19.0
QUESTION
Suppose I create a database connection:
...ANSWER
Answered 2022-Feb-25 at 12:05The connection is stored inside a nested list in tbl object.
You can rewrite the connection by assigning it the new con object. After that, business goes as usual.
QUESTION
I believe I should be able to do select * into #temptable from othertable (where #temptable does not previously exist), but it does not work. Assuming that othertable exists and has valid data, and that #sometemp does not exist,
ANSWER
Answered 2022-Feb-19 at 20:28There are few different approaches:
- Use the
immediatearg in yourDBI::dbExecutestatement
QUESTION
We are trying to create avro record with confluent schema registry. The same record we want to publish to kafka cluster.
To attach schema id to each records (magic bytes) we need to use--
to_avro(Column data, Column subject, String schemaRegistryAddress)
To automate this we need to build project in pipeline & configure databricks jobs to use that jar.
Now the problem we are facing in notebooks we are able to find a methods with 3 parameters to it.
But the same library when we are using in our build downloaded from https://mvnrepository.com/artifact/org.apache.spark/spark-avro_2.12/3.1.2 its only having 2 overloaded methods of to_avro
Is databricks having some other maven repository for its shaded jars?
NOTEBOOK output
...ANSWER
Answered 2022-Feb-14 at 15:17No, these jars aren't published to any public repository. You may check if the databricks-connect provides these jars (you can get their location with databricks-connect get-jar-dir), but I really doubt in that.
Another approach is to mock it, for example, create a small library that will declare a function with specific signature, and use it for compilation only, don't include into the resulting jar.
QUESTION
Using the profiler on SQL Server to monitor a stored procedure call via DBI/odbc, shows that dynamic SQL / prepared statement is generated :
ANSWER
Answered 2022-Feb-16 at 22:26I found what I was looking for in odbc package documentation : direct execution.
The odbc package uses Prepared Statements to compile the query once and reuse it, allowing large or repeated queries to be more efficient. However, prepared statements can actually perform worse in some cases, such as many different small queries that are all only executed once. Because of this the odbc package now also supports direct queries by specifying
immediate = TRUE.
This will use a prepared statement:
QUESTION
I have an ASP.Net Webforms website running in IIS on a Windows Server. Also on this server is the SQL server.
Everything has been working fine with the site but now I am seeing issues with using a DataAdapter to fill a table.
So here is some code, please note it's just basic outline of code as actual code contains confidential information.
...ANSWER
Answered 2021-Nov-27 at 15:53Microsoft.Data.SqlClient 4.0 is using ENCRYPT=True by default. Either you put a certificate on the server (not a self signed one) or you put
TrustServerCertificate=Yes;
on the connection string.
QUESTION
I need to call a webapi POST method using javascript.
The method accepts a model. I am able to invoke this method correctly from POSTMAN and also see the entries in the database.
...ANSWER
Answered 2022-Jan-18 at 17:12I had to make changes to the client-side code and the server-side code to make this work.
Changes to client-side code
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install dbConnect
You can use dbConnect like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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