postgresql lowercase

PostgreSQL is an open-source SQL database that supports standard SQL and allows users to connect to PostgreSQL via the JDBC driver for application development. The user extends the PostgreSQL function, allowing the developer to access the SEQUOIADB

After the project was ported from Oracle to PostgreSQL (version 9.4), the days went down again, tracked and positioned to determine that the call to the Pgdatabasemetadata.getprimarykeys () interface returned an empty set.It is well known that in

There are a variety of Installation manuals for each platform to be installed. You can search for details in google. Here is the Installation Method On debian, ubuntu class: aptitudeinstallpostgresql # This is the database aptitudeinstallpgadmin3 #

The SQL input consists of a series of commands . An order consists of a series of tokens , with a semicolon (";") End. The termination of the input stream also ends a command. Which tokens are valid depends on the syntax of the particular command.A

PostgreSQL tutorial (5): Functions and operators (1), postgresql Operators I. logical operators: Common logical operators include AND, OR, and not. Its semantics is exactly the same as that of logical operators in other programming languages. Ii.

PostgreSQL tutorial (6): Functions and operators (2), postgresql Operators 6. Pattern Matching: PostgreSQL provides three methods for implementing pattern matching: SQL LIKE operator, closer SIMILAR TO operator, and POSIX-style regular expression.1.

Document directory 9.2.2. Case sensitivity of the identifier From: http://bbs.chinaunix.net/viewthread.php? Tid = 812899   This problem is lost because I just got started with pgsql. PostgreSQL is case-sensitive and converts the database object

When developing Web applications, you often have to add search capabilities. I didn't even know what to search, so I drew a magnifying glass on the sketch. Search is a very important feature, so lucene based tools like Elasticsearch and SOLR become

Brief introductionWe can manage the PostgreSQL database through some graphical interface management programs, such as Pgadmin, to create new objects by visual or command line, delete and edit existing objects (such as directories, schemas, tables,

Vi. Pattern Matching: PostgreSQL provides three ways to implement pattern matching: SQL Like operator, more recent similar to operator, and posix-style regular expression.1. Like: Copy Code code as follows: string like pattern