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Generally speaking, it is better to make lots of frequent queries on a db (that pull a small amount of data), or less frequent queries on the db (that pull a large amount of data). &nbsp; I don't want to overload anything, or lock anyone out... &nbsp;I am not an expert by any means with databases, so, for my benefit, please keep discussion at a high level. &nbsp;Thanks!!
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Generally speaking, it is better to make lots of frequent queries on a db (that pull a small amount of data), or less frequent queries on the db (that pull a large amount of data).   I don't want to overload anything, or lock anyone out...  I am not an expert by any means with databases, so, for my benefit, please keep discussion at a high level.  Thanks!!

postgres queries -- need opinions

Databases are organized collections of data, most commonly accessed through management systems including schemas, tables, queries and processes that allow users to enter and manipulate the information or utilize it in other fashions, such as with web applications or for reporting purposes.

Databases

PostgreSQL is an object-relational database management system with an emphasis on extensibility and standards-compliance. As a database server, its primary function is to store data securely, supporting best practices, and to allow for retrieval at the request of other software applications. PostgreSQL implements the majority of the SQL2011 standard, is ACID-compliant and transactional using multiversion concurrency control (MVCC), and handles complex SQL queries using many indexing methods that are not available in other databases. It is cross-platform and runs on many operating systems including Linux, FreeBSD, OS X, Solaris, and Microsoft Windows.