To improve performance, MongoDB supports indexing on any field in a document. Indexes support the efficient execution of queries and can include primary and secondary indices. MongoDB’s query language supports CRUD (create, read, update, delete) operations and allows for complex aggregation, text...
The query language in MongoDB is JSON-oriented, just like the document structure. This makes for a very powerful and expressive syntax that can handle even complex nested documents. For example, you could query our theoretical database for all cats by issuing db.pet.find({ "type" : "cat"...
Structured Query Language (SQL) is a standardized programming language that is used to manage relational databases. SQL normalizes data as schemas and tables, and every table has a fixed structure. Instead of using tables and rows as inrelational databases, as a NoSQL database, the MongoDB ar...
What is MongoDB – Get to know about its history, MongoDB architecture & its components, drop database collections, like query with examples, difference between MongoDB and RDBMS. Also learn about its various application, features and future trends.
Transaction Control Languagecommands are used to change the state of some data -- for example, to COMMIT transaction changes or to ROLLBACK transaction changes. SQL syntax, the set of rules for how SQL statements are written and formatted, is similar to other programming languages. Some component...
JSON doesn’t have a date type, but each of the databases provides a way to interpret date types from whichever language you’re coding in. If you check out the Data Types and Conventions list for the MongoDB BSON API (bit.ly/o87Gnx), you’ll see that a date type is added, along...
SQL is the most common standardized programming language used to access databases. Depending on the programming environment, a developer might enter SQL directly—for example, to generate reports. It’s also possible to embed SQL statements into code written in another programming language or use a...
These procedures govern how data is accessed, modified and archived. In simple words, these are the instructions on how a DBMS should be used. (Related reading: stored procedures for databases.) 5. Database access query language When accessing a database, users must use a specific query ...
TSQLConnection is a part of the dbExpress library to connect to databases. In conclusion, the choice of the database connection component depends on the specific requirements of your project. TADOConnection and TSQLConnection are old and shouldn't really be used for new projects...
PHP is a powerful and versatile language that has cemented its place as one of the most widely-used programming languages for web development. From simple personal projects to large-scale enterprise applications, it has the tools and capabilities to get the job done. So, whether you’re looking...