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May 24, 2015 20:28
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PG psql commants
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General | |
\copyright show PostgreSQL usage and distribution terms | |
\g [FILE] or ; execute query (and send results to file or |pipe) | |
\gset [PREFIX] execute query and store results in psql variables | |
\h [NAME] help on syntax of SQL commands, * for all commands | |
\q quit psql | |
\watch [SEC] execute query every SEC seconds | |
Query Buffer | |
\e [FILE] [LINE] edit the query buffer (or file) with external editor | |
\ef [FUNCNAME [LINE]] edit function definition with external editor | |
\p show the contents of the query buffer | |
\r reset (clear) the query buffer | |
\s [FILE] display history or save it to file | |
\w FILE write query buffer to file | |
Input/Output | |
\copy ... perform SQL COPY with data stream to the client host | |
\echo [STRING] write string to standard output | |
\i FILE execute commands from file | |
\ir FILE as \i, but relative to location of current script | |
\o [FILE] send all query results to file or |pipe | |
\qecho [STRING] write string to query output stream (see \o) | |
Informational | |
(options: S = show system objects, + = additional detail) | |
\d[S+] list tables, views, and sequences | |
\d[S+] NAME describe table, view, sequence, or index | |
\da[S] [PATTERN] list aggregates | |
\db[+] [PATTERN] list tablespaces | |
\dc[S+] [PATTERN] list conversions | |
\dC[+] [PATTERN] list casts | |
\dd[S] [PATTERN] show object descriptions not displayed elsewhere | |
2015-05-24T19:59:12Z app[postgres.16]: [TEAL] checkpoint starting: time | |
General | |
\copyright show PostgreSQL usage and distribution terms | |
\g [FILE] or ; execute query (and send results to file or |pipe) | |
\gset [PREFIX] execute query and store results in psql variables | |
\h [NAME] help on syntax of SQL commands, * for all commands | |
\q quit psql | |
\watch [SEC] execute query every SEC seconds | |
Query Buffer | |
\e [FILE] [LINE] edit the query buffer (or file) with external editor | |
\ef [FUNCNAME [LINE]] edit function definition with external editor | |
\p show the contents of the query buffer | |
\r reset (clear) the query buffer | |
\s [FILE] display history or save it to file | |
\w FILE write query buffer to file | |
Input/Output | |
\copy ... perform SQL COPY with data stream to the client host | |
\echo [STRING] write string to standard output | |
\i FILE execute commands from file | |
\ir FILE as \i, but relative to location of current script | |
\o [FILE] send all query results to file or |pipe | |
\qecho [STRING] write string to query output stream (see \o) | |
Informational | |
(options: S = show system objects, + = additional detail) | |
\d[S+] list tables, views, and sequences | |
\d[S+] NAME describe table, view, sequence, or index | |
\da[S] [PATTERN] list aggregates | |
\db[+] [PATTERN] list tablespaces | |
\dc[S+] [PATTERN] list conversions | |
\dC[+] [PATTERN] list casts | |
\dd[S] [PATTERN] show object descriptions not displayed elsewhere | |
\ddp [PATTERN] list default privileges | |
\dD[S+] [PATTERN] list domains | |
\det[+] [PATTERN] list foreign tables | |
\des[+] [PATTERN] list foreign servers | |
\deu[+] [PATTERN] list user mappings | |
\dew[+] [PATTERN] list foreign-data wrappers | |
\df[antw][S+] [PATRN] list [only agg/normal/trigger/window] functions | |
\dF[+] [PATTERN] list text search configurations | |
\dFd[+] [PATTERN] list text search dictionaries | |
\dFp[+] [PATTERN] list text search parsers | |
\dFt[+] [PATTERN] list text search templates | |
\dg[+] [PATTERN] list roles | |
\di[S+] [PATTERN] list indexes | |
\dl list large objects, same as \lo_list | |
\dL[S+] [PATTERN] list procedural languages | |
\dm[S+] [PATTERN] list materialized views | |
\dn[S+] [PATTERN] list schemas | |
\do[S] [PATTERN] list operators | |
\dO[S+] [PATTERN] list collations | |
\dp [PATTERN] list table, view, and sequence access privileges | |
\drds [PATRN1 [PATRN2]] list per-database role settings | |
\ds[S+] [PATTERN] list sequences | |
\dt[S+] [PATTERN] list tables | |
\dT[S+] [PATTERN] list data types | |
\du[+] [PATTERN] list roles | |
\dv[S+] [PATTERN] list views | |
\dE[S+] [PATTERN] list foreign tables | |
\dx[+] [PATTERN] list extensions | |
\dy [PATTERN] list event triggers | |
\l[+] [PATTERN] list databases | |
\sf[+] FUNCNAME show a function's definition | |
\z [PATTERN] same as \dp | |
Formatting | |
\a toggle between unaligned and aligned output mode | |
\C [STRING] set table title, or unset if none | |
\f [STRING] show or set field separator for unaligned query output | |
\H toggle HTML output mode (currently off) | |
\pset NAME [VALUE] set table output option | |
(NAME := {format|border|expanded|fieldsep|fieldsep_zero|footer|null| | |
numericlocale|recordsep|recordsep_zero|tuples_only|title|tableattr|pager}) | |
\t [on|off] show only rows (currently off) | |
\T [STRING] set HTML <table> tag attributes, or unset if none | |
\x [on|off|auto] toggle expanded output (currently off) | |
Connection | |
\c[onnect] [DBNAME|- USER|- HOST|- PORT|-] | |
connect to new database (currently "drinkboard_dev") | |
\encoding [ENCODING] show or set client encoding | |
\password [USERNAME] securely change the password for a user | |
\conninfo display information about current connection | |
Operating System | |
\cd [DIR] change the current working directory | |
\setenv NAME [VALUE] set or unset environment variable | |
\timing [on|off] toggle timing of commands (currently off) | |
\! [COMMAND] execute command in shell or start interactive shell | |
Variables | |
\prompt [TEXT] NAME prompt user to set internal variable | |
\set [NAME [VALUE]] set internal variable, or list all if no parameters | |
\unset NAME unset (delete) internal variable | |
Large Objects | |
\lo_export LOBOID FILE | |
\lo_import FILE [COMMENT] | |
\lo_list | |
\lo_unlink LOBOID large object operations |
PSQL will not connect use this
postgres -D /usr/local/var/postgres
\x on
expanded display
HOW TO START THE SERVER
pg_ctl -D /usr/local/var/postgres -l /usr/local/var/postgres/server.log start
server starting
brew info postgres
To have launchd start postgresql at login:
ln -sfv /usr/local/opt/postgresql/*.plist ~/Library/LaunchAgents
Then to load postgresql now:
launchctl load ~/Library/LaunchAgents/homebrew.mxcl.postgresql.plist
Or, if you don't want/need launchctl, you can just run:
postgres -D /usr/local/var/postgres
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Listing TRIGGERS
You can list down all the triggers in the current database from pg_trigger table as follows:
SELECT * FROM pg_trigger;
http://www.tutorialspoint.com/postgresql/postgresql_triggers.htm
Listing Functions psql:
\df+