tables | simple command-line tool | SQL Database library
kandi X-RAY | tables Summary
kandi X-RAY | tables Summary
Tables is a simple command-line tool and powerful library for importing data like a CSV or JSON file into relational database tables. The goal is to make data import easy, configurable, and stable for large datasets into a relational database for better analysis.
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of tables
tables Key Features
tables Examples and Code Snippets
Lines of Code : 41License : Non-SPDX (Apache License 2.0)
Copydef tables_initializer(name="init_all_tables"):
"""Returns an Op that initializes all tables of the default graph.
Args:
name: Optional name for the initialization op.
Returns:
An Op that initializes all tables. Note that if there ar public static void main(String[] args) {
try {
ReladomoConnectionManager.getInstance().createTables();
} catch (Exception e1) {
e1.printStackTrace();
}
MithraManager mithraManager = MithraMana public void createTables() throws Exception {
Path ddlPath = Paths.get(ClassLoader.getSystemResource("sql").toURI());
try (Connection conn = xaConnectionManager.getConnection(); Stream list = Files.list(ddlPath);) {
list. Community Discussions
Trending Discussions on tables
QUESTION
I have a dynamic query that adds WHERE clauses according to the parameters received:
...ANSWER
Answered 2021-Jun-15 at 23:39I found the answer with the following lines of code:
QUESTION
I have two tables as follows:
...ANSWER
Answered 2021-Jun-15 at 19:02select user_id,name
, count(case when col_a = true then 1 end)
+ count(case when col_b = true then 1 end) total
from tableA a
join TableB b on a.user_id= b.id
group by user_id,name
QUESTION
I understand that after calling fork() the child process inherits the per-process file descriptor table of its parent (pointing to the same system-wide open file tables). Hence, when opening a file in a parent process and then calling fork(), both the child and parent can write to that file without overwriting one another's output (due to a shared offset in the open-file table entry).
However, suppose that, we call open() on some file after a fork (in both the parent and the child). Will this create a separate entries in the system-wide open file table, with a separate set of offsets and read-write permission flags for the child (despite the fact that it's technically the same file)? I've tried looking this up and I don't seem to be able to find a clear answer.
I'm asking this mainly since I was playing around with writing to files, and it seems like only one the outputs of the parent and child ends up in the file in the aforementioned situation. This seemed to imply that there are separate entries in the open file table for the two separate open calls, and hence separate offsets, so the slower process overwrites the output of the other process.
To illustrate this, consider the following code:
...ANSWER
Answered 2021-May-03 at 20:22There is a difference between a file and a file descriptor (FD).
All processes share the same files. They don't necessarily have access to the same files, and a file is not its name, either; two different processes which open the same name might not actually open the same file, for example if the first file were renamed or unlinked and a new file were associated with the name. But if they do open the same file, it's necessarily shared, and changes will be mutually visible.
But a file descriptor is not a file. It refers to a file (not a filename, see above), but it also contains other information, including a file position used for and updated by calls to read and write. (You can use "positioned" read and write, pread and pwrite, if you don't want to use the position in the FD.) File descriptors are shared between parent and child processes, and so the file position in the FD is also shared.
Another thing stored in the file descriptor (in the kernel, where user processes can't get at it) is the list of permitted actions (on Unix, read, write, and/or execute, and possibly others). Permissions are stored in the file directory, not in the file itself, and the requested permissions are copied into the file descriptor when the file is opened (if the permissions are available.) It's possible for a child process to have a different user or group than the parent, particularly if the parent is started with augmented permissions but drops them before spawning the child. A file descriptor for a file opened in this manner still has the same permissions uf it is shared with a child, even if the child would itself be able to open the file.
QUESTION
Currently I have 3 tables like below
Master
ID_NUMBER ZIPCODE 1 12341 2 12342 3 12343 4 12344Table1
ID_NUMBER CITYNAME COUNTYNAME 1 NEW YORK QUEENS 3 DETROIT SUFFOLKTable2
ID_NUMBER CITYNAME COUNTYNAME 2 ATLANTA ROCKLAND 4 BOSTON WINCHESTERMy desired output is like below. I want to filter based on the zipcode from master table
ID_NUMBER ZIPCODE CITYNAME COUNTYNAME 2 12342 ATLANTA ROCKLANDHow would i go about writing a query for this? Below is what i have tried but it's giving me null values if the ID_NUMBER is not found on that particular table.
...ANSWER
Answered 2021-Jun-15 at 22:37Use COALESCE():
QUESTION
I have this code which prints multiple tables
...ANSWER
Answered 2021-Jun-15 at 20:59So, this is a good opportunity to use purrr::map. You are half way there by applying code to one dataframe.
You can take the code that you have written above and put it into a function.
QUESTION
Sorry if this is a noob question!
I have two tables - a movie and a comment table.
I am trying to return output of the movie name and each comment for that movie as long as that movie has more than 1 comment associated to it.
Here are my tables
...ANSWER
Answered 2021-Jun-15 at 20:19Something like this could work
QUESTION
I'm creating an application where the user can post information and see the information posted, something like a forum. I created a list where the publications stored in the database are shown, so on the main page that list is shown with the title, description, date, etc. of each publication. Now, what I'm trying to do is select anyone of the posts in the list and then display the full information of the selected post in other view. I'm using a MVC view with its respective controller to consume the API.
The code on the API controller to get the info of the selected post:
...ANSWER
Answered 2021-Apr-12 at 02:43QUESTION
I have a function on a Google Sheet that combines 3 different ImportRange tables from 3 different sheets, and queries them so that any missing data/empty lines are cut out. The problem I'm having is that I want to add a column at the start of the list that specifies which sheet each row originated from, but I'm not sure how to do this, as I am unable to edit each source sheet.
This is my function so far:
...ANSWER
Answered 2021-Jun-15 at 20:18try:
QUESTION
I have a schema with many large tables which all have the same structure. Each table has an index on its id. I also have a separate table with all the id's across the other tables, pointing to their tablename; for example, the tables in the schema:
...ANSWER
Answered 2021-Jun-15 at 19:08You are looking for table partitioning:
QUESTION
Given MySQL tables something like this1:
...ANSWER
Answered 2021-Jun-15 at 13:49If there is a one-to-one mapping, you can join back using the type column:
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install tables
To use as a command-line tool: npm install -g tables
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page
