In this article we’ll get you up and running with all of the essential things you need to know to start on your journey to becoming a psql power-user. From basic command syntax to the most common (and helpful) meta-commands, it’s all covered throughout the rest of the article...
my_dbmy_db=>You are now connected to your database (see the PostgreSQL promt, i.e.=>) throughpsql, andyou can use valid statements in PostgreSQL to work on your database.Apart from the set of SQL commands, PostgreSQL provides a set of slash commands that helpyou in the administration...
在psql 里,你会看到下面的欢迎信息∶ Welcome to psql, the PostgreSQL interactive terminal. Type: \copyright for distribution terms \h for help with SQL commands \? for help on internal slash commands \g or terminate with semicolon to execute query \q to quit mydb=> 最后一行也可能是 mydb=...
PostgreSQL 11版本psql增加了五个变量更容易查询SQL执行失败的原因:ERROR SQLSTATE ROW_COUNT LAST_ERROR_MESSAGE LAST_ERROR_SQLSTATE使用示例如下:osdba=# select * from test01; id | t ---+--- 1 | 111 2 | 222 (2 rows) osdba=# \echo :ERROR false osdba=# \echo :SQLSTATE 00000 osdba=# \...
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PostgreSQL 11版本psql增加了五个变量更容易查询SQL执行失败的原因: ERROR SQLSTATE ROW_COUNT LAST_ERROR_MESSAGE LAST_ERROR_SQLSTATE 使用示例如下: osdba=# select * from test01; id | t ---+--- 1 | 111 2 | 222 (2 rows) osdba=# \echo :ERROR false...
psql"host=production-flexible-server.postgres.database.azure.com port=5432 user=adminuser dbname=postgres sslmode=require" After you connect, the psql utility displays a postgres prompt where you type sql commands. In the initial connection output, a warning might appear because the psql you're ...
psql -h localhost -U postgres psql -h my.postgres.server -U If you get an error message from these commands, your permission settings restrict access from the location you're trying to connect from. Depending on whether you want to allow connections from that location, you might need to ad...
mydb=> \i basics.sql The \i command reads in commands from the specified file. psql's -s option puts you in single step mode which pauses before sending each statement to the server. The commands used in this section are in the file basics.sql. Concepts PostgreSQL™ is a relational ...
psql -h localhost -U postgres psql -h my.postgres.server -UIf you get an error message from these commands, your permission settings restrict access from the location you're trying to connect from. Depending on whether you want to allow connections from that location, you might need to ...