晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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.\" cf. groff_mdoc
.Dd March 25, 2015
.Os FreeTDS 1.1.24
.Dt FISQL FreeTDS "FreeTDS Reference Manual"
.\"
.Sh NAME
.Nm fisql
.Nd interactive SQL shell
.\"
.Sh SYNOPSIS
.Pp
.Nm
.Op Fl eFgpnvXY
.Op Fl a Ar display_charset
.Op Fl A Ar packet_size
.Op Fl c Ar cmdend
.Op Fl D Ar database
.Op Fl E Ar editor
.Op Fl h Ar headers
.Op Fl H Ar hostname
.Op Fl i Ar inputfile
.Op Fl I Ar interfaces_file
.Op Fl J Ar client_charset
.Op Fl l Ar login_timeout
.Op Fl m Ar errorlevel
.Op Fl o Ar outputfile
.Op Fl P Ar password
.Op Fl s Ar colseparator
.Op Fl S Ar server
.Op Fl t Ar timeout
.Op Fl U Ar username
.Op Fl w Ar width
.Op Fl y Ar sybase_dir
.Op Fl z Ar language
.\"
.Sh DESCRIPTION
.Pp
.Nm
is very similar to the 
.Ql isql
utility programs distributed by Sybase and Microsoft. Like them, 
.Nm
uses the command 
.Ql go
on a line by itself as a separator between batches.
.\"
.Sh OPTIONS
.Bl -tag -width indent
.It Fl a Ar display_charset
The client charset name. Not implemented.
.It Fl A Ar packet_size
Set protocol packet size. You should not need to set this parameter.
.It Fl c Ar cmdend
Command terminator, defaults to
.Ql go Ns .
.It Fl D
Database name on the server to use.
.It Fl e
Echo SQL input (usually in outputfile)
.It Fl E Ar editor
Specify
an editor to invoke. Defaults to vi.
.It Fl F
FIPS mode ON. Server returns a message (but processes the query anyway)
when it encounters a non-standard SQL command.
.It Fl g
Display a brief help message
.It Fl h Ar headers
Number
of rows after which to repeat the column headers. Default is once per resultset.
.It Fl H Ar hostname
Hostname
of the client machine as it will be told to the server.
.It Fl I Ar interfaces_file
Name
of the interfaces or freetds.conf file to use.
.It Fl i Ar inputfile
Name
of script file, containing SQL.
.It Fl J Ar client_charset
Not
implemented.
.It Fl l Ar login_timeout
How
long to wait for the server to acknowledge a login attempt.
.It Fl m Ar errorlevel
For
errors of the severity level specified or higher,
print only the message number, state, and error level.
Below that level, print nothing.
.It Fl n
Suppress line numbers in echoed output.
.It Fl o Ar outputfile
Name
of output file, holding result data.
.It Fl p
Prints performance statistics. Not implemented.
.It Fl P Ar password
Database
server password.
.It Fl s Ar colseparator
The
column separator. Default is space. Shell metacharacters require quoting.
.It Fl S Ar server
Database
server to which to connect.
.It Fl t Ar timeout
The
query timeout, in seconds. How long to wait for a query to be processed.
The default is indefinitely, or as determined by freetds.conf.
.It Fl U Ar username
Database
server login name.
.It Fl v
Display version and copyright.
.It Fl w Ar width
How
many characters wide to print the output. Defaults to 80.
.It Fl X
Use encrypted login. Not implemented in FreeTDS.
.It Fl y Pa sybase_dir
Sets
the 
.Ev SYBASE
environment variable. Not used by FreeTDS.
.It Fl Y
Use chained transactions.
.It Fl z Ar language
Name
of a language for fisql's prompts and messages.
Cf. DBSETLNATLANG.
.El
.\"
.Sh NOTES
.Nm
is a filter; it reads from standard input, writes to standard output,
and writes errors to standard error. The
.Fl i Ns ,
.FL o Ns ,
and
.Fl e
options override these defaults.
.Pp
.Nm
uses the DB-Library API provided by FreeTDS. It was first implemented using
Sybase's own library and continues to work with it. Before (and after) modifying
it, it would be well to test it with Sybase's library to assure compatibility
between it and FreeTDS.
EXIT STATUS
.Pp
.Nm
exits 0 on success, and >0 if the server cannot process the query.
.Pp
.Nm
will report any errors returned by the server, but will continue
processing. In a production environment, this behavior may be insufficiently
stringent. To make it extremely intolerant of errors, change the message and
error handlers to call exit(3).
.\"
.Sh HISTORY
.Nm
first appeared in FreeTDS 0.65.
.\"
.Sh AUTHORS
The 
.Nm
utility was written by 
.An Nicholas S. Castellano Aq entropy@freetds.org Ns ,
who contributed it to the FreeTDS project under the terms of the GPL.
.\"
.Sh BUGS
Requires the GNU readline library.

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