而在PostgreSQL中,只能使用IS NULL和IS NOT NULL。例如: 代码语言:sql AI代码解释 -- MySQLSELECT*FROMexample_mysqlWHEREcolumn_name=NULL;-- 错误SELECT*FROMexample_mysqlWHEREcolumn_nameISNULL;-- 正确-- PostgreSQLSELECT*FROMexample_pgWHEREcolumn_nameISNULL;-- 正确SELECT*FROMexample_pgWHEREcolumn_name=NU...
PostgreSQL is an object-relational database management system (ORDBMS). PostgreSQL was developed in 1986 by Michael Stonebreaker and his team. It is easy to set up and install and offers support for both SQL and NoSQL PostgreSQL has found its place in the market because of some of its promi...
PostgreSQL is an advanced, enterprise-classopen-sourcerelational database that supports both SQL (relational) and JSON (non-relational) querying. It is a highly stable database management system backed by more than 20 years of community development. This thorough and collaborative approach has contrib...
Consider a switch from a commercial to an open source database. Explore the key differences and similarities between PostgreSQL and SQL Server
PostgreSQL is seamlessly supported by a wide array of extensions making it exceptionally flexible and extensible in addition to being compatible with Multiple SQL and NoSQL data models. Scalability Operate PostgreSQL at scale by using multiple technical options that enrich and enliven your database with...
PostgreSQL (or Postgres) is said to be the most advanced open-source relational database, maintained by the PostgreSQL Global Development Group and its prolific community support. Its goal is to be highly extensible and standards-compliant. Being standards-compliant makes it very easy to switch you...
PostgreSQL is an object-relational database management system. PostgreSQL offers support for JSON, (NoSQL) XML, etc. This DBMS supports arrays, ‘hstore’ data type, and customizable user-defined data types. The system also complies with the Boolean data type, IP-address data type, and tempor...
database要连接到的 PostgreSQL 数据库。是 username要连接的用户名。 如果使用 IntegratedSecurity,则不需要。是 password要用于连接的密码。 如果使用 IntegratedSecurity,则不需要。是 sslMode控制是否使用 SSL,具体取决于服务器支持。 - 禁用:已禁用 SSL。如果服务器需要 SSL,则连接将失败。
PostgreSQL is an object-relational database management system developed by the Department of Computer Science at the University of California, Berkeley. It currently has an active contribution to the open source community. Recently, the rankings have continued to advance. In fact, there are a lot ...
What is an Object-Relational Database? An ORDBMS extends the relational database model through the use of a separate object-oriented mode. It can do everything a relational, SQL-based database can do, but it also adds non-relational features. Therefore, an object-relational database can supp...