sequences

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F# Manage multiple lazy sequences from a single method?

I am trying to figure out how to manage multiple lazy sequences from a single function in F#. For example, in the code below, I am trying to get two sequences - one that returns all files in the dire[详细]

2023-01-22 13:08 分类：问答
How to use a trigger that gets the next value in a sequence

I\'m just learning Oracle and I understand the concept of triggers and sequences. What I can\'t seem to find is how they are used together in an auto-increment fashion similar to a SqlServer Identity[详细]

2023-01-20 23:07 分类：问答
Detecting sequence of at least 3 sequential numbers from a given list

I have a list of numbers e.g.21,4,7,9,12,22,17,8,2,20,23 I want to be able to pick out sequences of sequential numbers (minimum 3 items in length), so from the example above it would be 7,8,9 and 20,[详细]

2023-01-18 05:56 分类：问答
Hibernate and Postgresql - generator class in hibernate mapping file

The ids in my postgresql database are auto-incremental (there are sequences defined in a database). When creating a hibernate mapping files I set the class generator to increment:[详细]

2023-01-17 02:36 分类：问答
How can I determine the actual database row insertion order?

I have a multithreaded process which inserts several records into a single table.The inserts are performed in a stored procedure, with the sequence being generated INTO a variable, and that variable i[详细]

2023-01-07 20:44 分类：问答
Are there sequence-operator implementations in .NET 4.0?

With that I mean similar to the Linq join, group, distinct, etc. only working on sequences of values, not collections.[详细]

2023-01-04 21:37 分类：问答
Python: check if an object is a sequence

In python is 开发者_Python百科there an easy way to tell if something is not a sequence? I tried to just do:[详细]

2023-01-01 18:44 分类：问答
Sequences only programming language

I once read about a programming laguage which only first-order values were sequences. An integer value, for instance, was seen as a sequence of integers of one element. I totally forgot the name of th[详细]

2022-12-29 11:49 分类：问答
How to insert an n:m-relationship with technical primary keys generated by a sequence?

Let\'s say I have two tables with several fields and in every table there is a primary key which is a technical id generated by a database sequence:[详细]

2022-12-29 00:07 分类：问答
Repeating vectors in Clojure

I am a Clojure newbie. I am trying to get two copies of a vector of card suits. The non-DRY way that I can come up with is[详细]

2022-12-28 03:49 分类：问答