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How to remove old Docker containers

...can use Docker container prune: docker container prune This will remove all stopped containers and should work on all platforms the same way. There is also a Docker system prune: docker system prune which will clean up all unused containers, networks, images (both dangling and unreferenced), ...
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Callback after all asynchronous forEach callbacks are completed

...veral ways to accomplish what you want: Using a simple counter function callback () { console.log('all done'); } var itemsProcessed = 0; [1, 2, 3].forEach((item, index, array) => { asyncFunction(item, () => { itemsProcessed++; if(itemsProcessed === array.length) { callback(...
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Simultaneously merge multiple data.frames in a list

...ch data.frame differs in terms of the number of rows and columns, but they all share the key variables (which I've called "var1" and "var2" in the code below). If the data.frames were identical in terms of columns, I could merely rbind , for which plyr's rbind.fill would do the job, but that'...
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How to get primary key column in Oracle?

....table_name, cols.column_name, cols.position, cons.status, cons.owner FROM all_constraints cons, all_cons_columns cols WHERE cols.table_name = 'TABLE_NAME' AND cons.constraint_type = 'P' AND cons.constraint_name = cols.constraint_name AND cons.owner = cols.owner ORDER BY cols.table_name, cols.positi...
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How to squash all git commits into one?

...ew repository with current state of the working copy. If you want to keep all the commit messages you could first do git log > original.log and then edit that for your initial commit message in the new repository: rm -rf .git git init git add . git commit or git log > original.log # edit ...
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How can foreign key constraints be temporarily disabled using T-SQL?

... If you want to disable all constraints in the database just run this code: -- disable all constraints EXEC sp_MSforeachtable "ALTER TABLE ? NOCHECK CONSTRAINT all" To switch them back on, run: (the print is optional of course and it is just list...
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Core Data: Quickest way to delete all instances of an entity

I'm using Core Data to locally persist results from a Web Services call. The web service returns the full object model for, let's say, "Cars" - could be about 2000 of them (and I can't make the Web Service return anything less than 1 or ALL cars. ...
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How to list all the available keyspaces in Cassandra?

...y the schema_keyspaces table in the system keyspace. There's also a table called schema_columnfamilies which contains information about all tables. The DESCRIBE and SHOW commands only work in cqlsh and cassandra-cli. share ...
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How do I replace text in a selection?

... This frustrated the heck out of me, and none of the above answers really got me what I wanted. I finally found the answer I was looking for, on a mac if you do ⌘ + option + F it will bring up a Find-Replace bar at the bottom of your editor which is local to the file you have open. There is...
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What is the meaning of the CascadeType.ALL for a @ManyToOne JPA association

... The meaning of CascadeType.ALL is that the persistence will propagate (cascade) all EntityManager operations (PERSIST, REMOVE, REFRESH, MERGE, DETACH) to the relating entities. It seems in your case to be a bad idea, as removing an Address would lead ...