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Additionally there is a single-row version, UPDATE OR INSERT INTO tablename (columns) VALUES (values) [MATCHING (columns)], but the latter does not give you the option to take different actions on insert versus update (e.g. setting a new sequence value only for new rows, not for existing ones.)
When two people have made changes to copies of the same file, diff3 can produce a merged output that contains both sets of changes together with warnings about conflicts. diff3 can merge three or more sets of changes to a file by merging two change sets at a time. diff3 can incorporate changes from two modified versions into a common preceding ...
The sort-merge join (also known as merge join) is a join algorithm and is used in the implementation of a relational database management system. The basic problem of a join algorithm is to find, for each distinct value of the join attribute, the set of tuples in each relation which display that value. The key idea of the sort-merge algorithm is ...
Even different revisions of the same document — if there are many changes due to additions, removals, or moving of content — may make comparisons of file changes very difficult to interpret. This suggests frequent version saves of a critical document, to better facilitate a file comparison.
[2] The three-way merge looks for sections which are the same in only two of the three files. In this case, there are two versions of the section, and the version which is in the common ancestor "C" is discarded, while the version that differs is preserved in the output. If "A" and "B" agree, that is what appears in the output.
By David Shepardson. WASHINGTON (Reuters) - The head of the Transportation Security Administration on Thursday warned that an extended partial U.S. government shutdown could lead to longer wait ...
More than two dozen House Republicans are asking President-elect Donald Trump to terminate the Internal Revenue Service's free direct tax-filing system as soon as day one of his presidency.
Yields: 2-4 servings. Prep Time: 10 mins. Total Time: 10 mins. Ingredients. 1/4 c. extra-virgin olive oil. 1 tbsp. thinly sliced chives. 1 tbsp. white balsamic vinegar