\dA[+] [PATTERN] list access methods \db[+] [PATTERN] list tablespaces \dc[S+] [PATTERN] list conversions \dC[+] [PATTERN] list casts \dd[S] [PATTERN] show object descriptions not displayed elsewhere \dD[S+] [PATTERN] list domains \ddp [PATTERN] list default privileges \dE[S+] [...
test=> CREATE DATABASE test3; ERROR: permission denied to create database #没切超级用户,但已经给提示了,只是权限不够而已,语句是没有问题的,切换用户即可成功建立新数据库。 小结:在psql这个终端内,SQL语句需要加分号,在图形化管理界面不需要加分号,同MySQL一致的。 二,用户的新建,赋权,权限更改,查询当前...
Step 4: Use the following command tolist all the databases in PostgreSQL: \l The output shows a list of available databases and their characteristics. CREATE DATABASE Parameters The available parameters for creating a database are: [OWNER = role_name] TheOWNERparameter assigns the database owner...
TO { 'filename' | PROGRAM 'command' | STDOUT } [ [ WITH ] ( option [, ...] ) ]查询语句单表查询 📝PostgreSQL 简单查询可以参考这篇文章。查询单个表中的字段:SELECT column1, column2, ... FROM table_name;查询所有字段:SELECT * FROM table_name; 排除查询结果中的重复数据:SELECT...
SQLedge contains a Postgres wire proxy, default onlocalhost:5433. This proxy uses the local SQlite database for reads, and forwards writes to the upstream Postgres server. Compatibility When running, the SQL statements interact with two databases; Postgres (for writes) and SQLite (for reads)....
-c, --command=COMMAND run only singlecommand(SQL or internal) andexit-d, --dbname=DBNAME database name to connect to (default:"root") -f, --file=FILENAME execute commands from file,thenexit-l, --list list available databases,thenexit-v, --set=, --variable=NAME=VALUEsetpsql variable...
-c,--command=COMMAND run only single command (SQL or internal) and exit -d,--dbname=DBNAME database name to connect to (default: "xingxing.duan") -f,--file=FILENAME execute commands from file, then exit -l,--list list available databases, then exit ...
-c, --command=COMMAND run only single command (SQL or internal) and exit -d, --dbname=DBNAME database name to connect to (default: "zzx88") -f, --file=FILENAME execute commands from file, then exit -l, --list list available databases, then exit ...
To list all databases in the server run the following command: \l+ To list top 20 tables by their size run the following command: SELECT nspname || '.' || relname AS "relation", pg_size_pretty(pg_total_relation_size(C.oid)) AS "total_size" ...
psql -l # will list all databases on Postgres cluster 的pg_dump / pg_restore的 pg_dump -U username -f backup.dump database_name -Fc switch -F 指定备份文件的格式: c 将使用自定义PostgreSQL格式,该格式经过压缩并产生最小的备份文件大小 ...