U can see the printscr botton at the top right of ur keyboard and then u can type paint and the control v.
Answer:
See explaination
Explanation:
The reasons why indexed sequential search structure is better are:
1. In index sequential search any field of the records can be used as the key. This key field can be numerical or alphanumerical.
2. Since each record has its data block address, searching for a record in larger database is easy and quick. There is no extra effort to search records. But proper primary key has to be selected to make efficient.
3. This method gives flexibility of using any column as key field and index will be generated based on that. In addition to the primary key and its index, we can have index generated for other fields too. Hence searching becomes more efficient, if there is search based on columns other than primary key.
The reasons why 5 B-tree is better:
1.The B-tree Provides support for range of queries in an efficient manner and You can iterate over an ordered list of elements.
2. B-Tree algorithms are good for accessing pages (or blocks) of stored information which are then copied into main memory for processing. In the worst case, they are designed to do dynamic set operations in O(lg n) time because of their high "branching factor" (think hundreds or thousands of keys off of any node). It is this branching factor that makes B-Trees so efficient for block storage/retrieval, since a large branching factor greatly reduces the height of the tree and thus the number of disk accesses needed to find any key.
3. It is a generalization of a BST in that a node can have more than two children. These are self-balancing and hence the average and worst complexities is logarithmic. We opt for these when the data is too huge to fit in main memory. These structures are used in database indexing and help in faster operations on disk
the additional informations is we should first decide to choose which structure is suiatable for which algoritm in terms of space and time and then use the appropriate search algorithm.
Answer:
A criteria in query is used to compare to query field values so as to determine whether to include the record that contains each value.
Explanation:
A criteria in query is used to compare to query field values so as to determine whether to include the record that contains each value. Query criteria is used to limit the result from a query retrieving only specific items.
Only when an item matches all the criteria can it be shown as a query results. Query criterias can be simple making use of basic operators and constants while some may be complex, and use functions, special operators,.
Answer:
Miguel y Maru están muy cansados. - Miguel y Maru están cansadísimos
Felipe es muy joven. - Felipe es jovencísimo
Jimena es muy inteligente. - Jimena es inteligentísima
La madre de Marissa está muy contenta. - La madre de Marissa está contentísima
Estoy muy aburrido. - Estoy aburridísimo
Explanation:
In this activity we have to switch the statements to the absolute superlative of the expressions. In Spanish we can add the suffix -ísimo to an adjective to refer to the highest degree of something. It can be translated in ENglish to "really, extremely, super or quie". The statements in English are:
- Miguel and Maru are very tired - Miguel and Mary are extremely tired
- Felipe is very young - Felipe is super young
- Jimena is very smart - Jimena is really smart
- Marissa´s mother is very happy - Marissa´s mother is extremely happy
- I´m very bored - I´m super bored
