MUMPS-SQL-DB-CREATE(1)           User Commands          MUMPS-SQL-DB-CREATE(1)

NAME
       mumps-sq-db-create Sqlite3 Database Initializer

SYNOPSIS
       mumps-sql-db-create

DESCRIPTION
       Creates  and  initializes  the  Mumps  Sqlite3  database.  Any existing
       database  is  deleted.  The  name  of  the  databse  will  normally  be
       mumps.sqlite but this can be changed by a configure option.

       The  database will be initialized by default to hold global arrays with
       up to 30 indices of up to 64 characters each with a data item up to 128
       characters in length. These values can be changed by configure options.
       The actual number of indices is determined when the system is compiled.
       At present, that number is 12.

       The database will have a page size of 4096.

       The default database journal_mode will be set to MEMORY (other  options
       include DELETE, TRUNCATE, PERSIST, and OFF). The default can be changed
       by an option to configure.

       By  default,  the  database  is  stored  on  disk.  A  memory  resident
       (transient) database can be created by an option to configure.

DATABASE
       The database once created may be accessed by multiple instances of  the
       mumps interpreter.

       Each  instance of mumps looks for the database in the directory current
       when the interpreter was invoked. For a database shared among  multiple
       instances started from multiple directories, create one instance of the
       database  in  one directory (need not be a directory from which a mumps
       instance was started). Then in other directories, make a soft  link  to
       the directory containg the main mumps.sqlite database. For example:

       ln -s ~/Desktop/mumps.sqlite mumps.sqlite

       The above creates a link named mumps.sqlite in the current directory to
       a real file named mumps.sqlite in the users Desktop directory.

       Multiple links in multiple directories may point to the same file.

       The Sqlite3 database can be accessed through Sqlite3 by the command

       sqlite3 mumps.sqlite

       assuming  the  default  database  name  has  not been altered. Standard
       Sqlite3 and SQL command my be used to  search,  alter,  or  modify  the
       database.

       By default, the clobal array names are in column a1. The indices of the
       array  are stored in columns a2 through a9 and the data stored, if any,
       is in column a10. So, in a global array created with:

       for i=1:1:10000 set ^a(i)=i

       the SQL command to  see  the  data  from  array  elements  ^a(9000)  to
       ^a(9010) would be:

       sqlite> .separator " "
       sqlite> select "^",a1,"(",a2,") =",a10 from mumps where
               cast (a2 as integer) >= 9000 and
               cast (a2 as integer) <= 9010;
       ^ a ( 9000 ) = 9000
       ^ a ( 9001 ) = 9001
       ^ a ( 9002 ) = 9002
       ^ a ( 9003 ) = 9003
       ^ a ( 9004 ) = 9004
       ^ a ( 9005 ) = 9005
       ^ a ( 9006 ) = 9006
       ^ a ( 9007 ) = 9007
       ^ a ( 9008 ) = 9008
       ^ a ( 9009 ) = 9009
       ^ a ( 9010 ) = 9010
       sqlite>

       Note:  By  default,  this  version of mumps stores numbers as character
       strings so conversion is necessary when numeric ranges  are  used.  The
       Sqlite3 command decoration.

RELATED COMMANDS
       mumps
       sqlite3

FILES
       Files installed associated with mumps are:

       /share/man/man7/mumps-doc.7.gz
       /share/man/man7/mumps-sql-db-create.1.gz
       /share/man/man1/mumps.1.gz
       /include/mumpsc/*.h
       /lib/libmpscpp.a
       /lib/libmumps.a
       /lib/libmpsglobal_native.a
       /bin/mumps2c
       /bin/mumps-sql-db-create.script
       /bin/mumpslib
       /bin/mumpsc
       /bin/mumps

AUTHOR
       Written by Kevin C. O'Kane.

REPORTING BUGS
       Online help: <https://www.cs.uni.edu/~okane/

COPYRIGHT
       Copyright (C)  2025  Kevin C. O'Kane

       Permission  is  granted to copy, distribute and/or modify this document
       under the terms of the GNU Free Documentation License, Version  1.3  or
       any  later  version  published by the Free Software Foundation; with no
       Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts.

       A     copy      of      the      license      is      available      at
       https://www.gnu.org/licenses/fdl-1.3.en.html

       Full documentation <https://https://www.cs.uni.edu/~okane/>

SGR coreutils 1.0              February 3, 2026         MUMPS-SQL-DB-CREATE(1)
