I am working on a project using typeorm and nestjs.
When a table is first created, I want to execute the sql statement and put the data in it.
I searched for a way to put the initial data, but couldn't find any results.
I need your help.
thank you :)
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I've a clustered partitioned table exported from GA 360. Attached is the image. I would like to create exact replica of the same. Using Web UI it's not possible. I created backup table using bq command line tool, still no luck.
Also, whenever we check preview it has a day filter. It looks like this:
Whenever data is appended to the backup table, I don't find this filter there even though this option is set to true while creating a table.
If you can give more context about handling this kind of table it would be beneficial.
Those are indeed sharded tables. As explained by #N. L they follow a time-based naming approach: [PREFIX]_YYYYMMDD. They then get grouped together. The explained procedure to backup them seems correct. Anyhow, I would recommend to use partitioned tables as it will be easier to backup them and they perform better in general.
This is not a cluster / partitioned table. This one is a sharded non-partitioned table having one common prefix. Once you start creating multiple tables with same prefix we can see them under the same prefix.
Ex:
ga_session_20190101
ga_session_20190102
both these tables will be grouped together.
To take backup of these tables you need to create a script to copy source to destination table with same name and execute that script using bq command line tool under the same project.
Need help to pull all data from couch DB.
Inside Couch DB I have one database named "resume"
Inside that resume database number of id contain data.
I need all id data inside a data frame.
Need help, any snipped code will be very helpful for me.
One way to do it is transform the output to CSV right in CouchDB. I did this in a project once (not R, but also a tool to do statistics) and it worked quite well. You can use list functions of CouchDB for that: it gives you an iterator over the view's output plus methods for writing to the HTTP response. The following link gives you a lot of information on this: http://docs.couchdb.org/en/1.6.1/couchapp/ddocs.html#list-functions
Hope this helps - let us know...
We are using Oracle Warehouse Builder in our project.Accidentally,some of the internal tables
data got deleted.The impact is when i open the map in OWB,the canvas in completely blank.I cannot see the tables and transformations applied.However when I right click on the map and execute,it does that perfectly fine.But the code is not visible and neither can I deploy that map.The table whose data deletion caused this was CMPSCOMAPCLASSES.We do not have a regular backup of the databse.Hence cannot recover the data.
Can anybody please help me in getting back the data anyhow.
Appreciate your help.
I have a database that's been populated with data on a server. I've made some
changes to the database models and I wish to merge the existing data with the new data without losing everything.
Do you know of an appropriate and no-nonsense method to achieve this?
Well one method would be to set up replication from each of them to a single database. But that seems pretty time intensive. I think you might have to write a program to do it (either .net or SQL) because how would it know which record to take if you have two records with the same primary key?
If you know that there will never be any duplicates, you could just write sql statements to do it. But that's a pretty big if.
You might try something like http://www.red-gate.com/products/sql-development/sql-data-compare/ which will synchronize data and I believe it will also figure out what to do when there are two records. I've had very good luck with Red-Gate products.
I'm writing an app for wp7 using coolstorage and sqlite as the database.
The reason I chose sqlite was because it appears to have a good ability to do updates to the schema.
However, in my testing I can run an 'alter table...' command but if I add a column and then try to read that column I get an error that the column doesn't exist.
But if I close the app and run it again, the column is there.
I thought about trying to close my connection, but I don't know how to do that using coolstorage. Is there a way? Would that work?
I'm new to both Coolstorage and SQLite so any help is appreciated.
How can I alter a sqlite schema without closing and re-oppening the app?
[Update: 15 Dec 2011]
We avoided this problem by making sure we ran our schema updates before querying the affected tables, which is probably the right thing to do anyway.
If anyone comes up with a way to do the schema change after running a query against a table, I would still be interested in knowing.
Sqlite has the ability to add columns to the end of existing tables in-place, however any queries which have already been prepared will not show the changes. In my experience, if you prepare the query again, it works. Alternatively, you could close and re-open the database. Note that other schema changes are not directly supported, and will require you to do the following:
Rename the original table
Create a new table with the desired changes.
Copy the data from the old table to the new one, as applicable.
Delete the original table.