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Full Discussion: Pass a DDL statement to a KSH script
Top Forums Shell Programming and Scripting Pass a DDL statement to a KSH script Post 302449116 by agama on Saturday 28th of August 2010 02:01:44 PM
Old 08-28-2010
This should give you enough of an idea of how to write the script. This example assumes Ksh (Korn shell) as bash has issues with piping command output to read into variable names.

Code:
#!/usr/bin/env ksh
while [[ -n $1 ]]       # for each string on the command line
do
        echo "$1" | read cmd1 cmd2 table_name sub_cmd column_name junk
        if [[ $1" "$2 == "ALTER TABLE" ]]
        then
                if [[ $sub_cmd == "ADD" ]]
                then
                        database_command "select 1 from USER_TABLES where table_name = $table_name and column_name = ${column_name/\(/}" | wc -l | read count
                        # assuming that one record out from database command is a good response and any other amount of output is not
                        if (( $count != 1 ))
                        then
                                echo "error verifying $1"
                        else
                                echo "verified: $1"
                        fi
                fi
        fi

        shift
done

I have no way to actually test this, but it does pass syntax checking by the shell.

Have fun.
This User Gave Thanks to agama For This Post:
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LEARN ABOUT DEBIAN

mdb-schema

MDBTools(1)															       MDBTools(1)

NAME

       mdb-schema - Generate schema creation DDL

SYNOPSIS

       mdb-schema [options] database [backend]

DESCRIPTION

       mdb-schema is a utility program distributed with MDB Tools.

       It produces DDL (data definition language) output for the given database. This can be passed to another database to create a replica of the
       original access table format.

OPTIONS

       -T <table>, --table <table>
	      Single table option.  Create schema for this table only. Default is to export all tables.

       -N namespace
	      Prefix identifiers with namespace.

       --drop-table
	      Issue DROP TABLE statement.

       --no-drop-table
	      Don't issue DROP TABLE statement. This is the default.

       --not-null
	      Issue NOT NULL constraints. This is the default.

       --no-not-null
	      Don't issue NOT NULL constraints.

       --default-values
	      Issue DEFAULT values.

       --no-default-values
	      Don't issue DEFAULT values. This is the default.

       --not-empty
	      Issue CHECK <> '' constraints.

       --no-not-empty
	      Don't issue CHECK <> '' constraints. This is the default.

       --indexes
	      Export INDEXes. This is the default.

       --no-indexes
	      Don't export INDEXes.

       --relations
	      Export foreign keys constraints. This is the default.

       --no-relations
	      Don't export foreign keys constraints.

       backend
	      Specifies target DDL dialect. Supported values are access, sybase, oracle, postgres, and mysql. If not specified the  generated  DDL
	      will be in access format.

ENVIRONMENT

       MDB_JET3_CHARSET
	      Defines the charset of the input JET3 (access 97) file. Default is CP1252. See iconv(1).

       MDBICONV
	      Defines the output charset to use for the SQL file. Default is UTF-8. mdbtools must have been compiled with iconv.

       MDBOPTS
	      semi-column separated list of options:

	      o  use_index

	      o  no_memo

	      o  debug_like

	      o  debug_write

	      o  debug_usage

	      o  debug_ole

	      o  debug_row

	      o  debug_props

	      o  debug_all is a shortcut for all debug_* options

NOTES

HISTORY

       mdb-schema first appeared in MDB Tools 0.1.

SEE ALSO

       gmdb2(1) mdb-export(1) mdb-hexdump(1) mdb-prop(1) mdb-sql(1) mdb-ver(1) mdb-array(1) mdb-header(1) mdb-parsecsv(1) mdb-tables(1)

AUTHORS

       The mdb-schema utility was written by Brian Bruns and others.

BUGS

       Relationships  and  other features may not be supported by all databases.  Access datatypes are mapped to their closest counterparts in the
       target backend. This may not always yield an exact fit.

0.7								   13 July 2013 						       MDBTools(1)
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