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Nishtha Thakur has Published 564 Articles
![Nishtha Thakur](https://www.tutorialspoint.com/assets/profiles/13598/profile/60_104893-1512719058.jpg)
Nishtha Thakur
165 Views
Before getting into example, we should know what sqlite data base in android is. SQLite is an open source SQL database that stores data to a text file on a device. Android comes in with built in SQLite database implementation. SQLite supports all the relational database features. In order to ... Read More
![Nishtha Thakur](https://www.tutorialspoint.com/assets/profiles/13598/profile/60_104893-1512719058.jpg)
Nishtha Thakur
43 Views
The unordered_multimap rehash(N) function in C++ STL sets the number of buckets in the container to n or more. A rehash is forced if n is greater than the current number of buckets in the container. The new bucket count can either be equal to or greater than n. The ... Read More
![Nishtha Thakur](https://www.tutorialspoint.com/assets/profiles/13598/profile/60_104893-1512719058.jpg)
Nishtha Thakur
65 Views
To find a document by the non-existence of a field in MongoDB, the syntax is as follows −db.yourCollectionName.find({ "yourFieldName" : { "$exists" : false } }).pretty();To understand the above syntax, let us create a collection with the document. The query to create a collection with a document is as follows ... Read More
![Nishtha Thakur](https://www.tutorialspoint.com/assets/profiles/13598/profile/60_104893-1512719058.jpg)
Nishtha Thakur
98 Views
The syntax is as follows for the $or query in MongoDB −db.yourCollectionName.find({ $or : [ { "yourFieldName" : "yourValue1" }, {"yourFieldName":"yourValue2"}, ...........N ] } ).pretty();To understand the concept, let us create a collection with the document. The query to create a collection with a document is as follows −> db.orDemo.insertOne({"UserName":"Larry", ... Read More
![Nishtha Thakur](https://www.tutorialspoint.com/assets/profiles/13598/profile/60_104893-1512719058.jpg)
Nishtha Thakur
63 Views
unordered_multimap size() function in C++ STL returns the number of elements in the unordered map.AlgorithmBegin Declare an empty map container m. Performing reserve function to restrict the most appropriate bucket_count of the map container. Insert values in the map container. Print the size of the ... Read More
![Nishtha Thakur](https://www.tutorialspoint.com/assets/profiles/13598/profile/60_104893-1512719058.jpg)
Nishtha Thakur
48 Views
Before getting into example, we should know what sqlite data base in android is. SQLite is an open source SQL database that stores data to a text file on a device. Android comes in with built in SQLite database implementation. SQLite supports all the relational database features. In order to ... Read More
![Nishtha Thakur](https://www.tutorialspoint.com/assets/profiles/13598/profile/60_104893-1512719058.jpg)
Nishtha Thakur
661 Views
vector insert() function in C++ STL helps to increase the size of a container by inserting the new elements before the elements at the specified position.It is a predefined function in C++ STL.We can insert values with three types of syntaxes1. Insert values by mentioning only the position and value:vector_name.insert(pos, ... Read More
![Nishtha Thakur](https://www.tutorialspoint.com/assets/profiles/13598/profile/60_104893-1512719058.jpg)
Nishtha Thakur
414 Views
Different operations on array and pseudocodes:Begin In main(), While TRUE do Prints some choices. Take input of choice. Start the switch case When case is 1 Print the size of ... Read More
![Nishtha Thakur](https://www.tutorialspoint.com/assets/profiles/13598/profile/60_104893-1512719058.jpg)
Nishtha Thakur
863 Views
In order to return static strings in MySQL, you can use UNION. Following is the syntax −select 'yourStringValue1' as yourAliasName UNION select 'yourStringValue2' as yourAliasName;Let us implement the above syntax to return static strings in MySQL. Following is the query −mysql> select 'HELLO' as staticStringsResult -> UNION -> ... Read More
![Nishtha Thakur](https://www.tutorialspoint.com/assets/profiles/13598/profile/60_104893-1512719058.jpg)
Nishtha Thakur
57 Views
Before getting into example, we should know what sqlite data base in android is. SQLite is an open source SQL database that stores data to a text file on a device. Android comes in with built in SQLite database implementation. SQLite supports all the relational database features. In order to ... Read More