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 \q quit psql \watch [SEC] execute query every SEC seconds Help \? [commands] show help on backslash commands \? options show help on psql command-line options \? variables show help on special variables \h [NAME] help on Syntax of sql commands,* for all commands 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,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| unicode_border_linestyle|unicode_column_linestyle|unicode_header_linestyle}) \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|-] | conninfo} connect to new database (currently "cars") \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 原文链接：https://www.f2er.com/postgresql/194036.html