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64 строки
2.4 KiB
Plaintext
64 строки
2.4 KiB
Plaintext
!!! set ECHO_HIDDEN on
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to print underlying sql-s
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Usage:
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psql [OPTION]... [DBNAME [USERNAME]]
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help:
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\? [commands] show help on backslash commands
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\? options show help on psql command-line options
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\? variables show help on special variables
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\h [NAME] help on syntax of SQL commands, * for all commands
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General options:
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-h <dbhost>
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connect to <dbhost> host
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-d, --dbname=DBNAME database name to connect to (default: "iharh")
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or connection URL
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postgresql://localhost
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https://psql-tips.org/psql_tips_all.html#tip013
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-U, --username <dbuser>
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connect by <dbuser> user
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-L filename
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--log-file=filename
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Write all query output into file filename, in addition to the normal output destination.
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-v assignment
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--set=assignment
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--variable=assignment
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Perform a variable assignment, like the \set meta-command. Note that you must separate name and value, if any, by an equal sign on the command line. To unset a variable,
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leave off the equal sign. To set a variable with an empty value, use the equal sign but leave off the value. These assignments are done during a very early stage of start-up,
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so variables reserved for internal purposes might get overwritten later.
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-c, --command=COMMAND
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run only single command (SQL or internal) and exit
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-f, --file=FILENAME
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execute commands from file, then exit.
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If you use the value - (hyphen) in the flag -f or --filename, psql will read commands and queries from the standard input.
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The read will end when reaching EOF command (CTRL+D) or the \q command.
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https://psql-tips.org/psql_tips_all.html#tip007
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or just redirect (with "<" or "|")
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https://psql-tips.org/psql_tips_all.html#tip009
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-l, --list
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list available databases, then exit
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-e, --echo-queries
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display the query just before the query result in the standard output.
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-x, --expand
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expand the output for better readability
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https://psql-tips.org/psql_tips_all.html#tip043
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-s, --single-step
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stop after each command (for debug)
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-t, --tuples-only
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turn off printing column names and result row count footers
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-1, --single-transaction
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execute all in single transaction
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samples
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$ psql "service=myservice sslmode=require"
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$ psql postgresql://dbmaster:5433/mydb?sslmode=require
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