05-21-2008
Thanks ,
let me rephrase it . I want to look for view in a ddl file and then replace it with target schema.VW_<old view name > .
For example,
CREATE VIEW MOUSE_UHC AS SELECT DT_SYS_ID ,DAY_ABBR_CD,LST_DAY_MO_IND,MONTH_NBR,FULL_DT,DAY_NBR FROM DIM_COPY;
CREATE VIEW OPSDM002.TABLE_UHC AS SELECT DAY_ABBR_CD,LST_DAY_MO_IND,MONTH_NBR,FULL_DT,DAY_NBR,LOAD_DT,WEEK_NBR_YR,SEQ_NBR
to
CREATE VIEW OPSDM002.VW_MOUSE_UHC AS SELECT DT_SYS_ID ,DAY_ABBR_CD,LST_DAY_MO_IND,MONTH_NBR,FULL_DT,DAY_NBR FROM DIM_COPY;
CREATE VIEW OPSDM002.VW_TABLE_UHC AS SELECT DAY_ABBR_CD,LST_DAY_MO_IND,MONTH_NBR,FULL_DT,DAY_NBR,LOAD_DT,WEEK_NBR_YR,SEQ_NBR
Problem comes when in some lines view name doesn't have source schema as its prefix .
Here is the code I am using to fix it in vain
#cat view_add.shl
#!/bin/ksh
#####################################################
# use cut and awk to refine the view name
######################################################
if grep "CREATE VIEW" dim_copy.20080516.sql
then
sed -e '/^CREATE VIEW/s/\(.*\.\)\(.*\)/\1VW_\2/' dim_copy.20080516.sql > dim_copy.20080516.sql1
cat dim_copy.20080516.sql1 > dim_copy.20080516.sql
elif grep "CREATE VIEW" dim_copy.20080516.sql | grep -v OPSDM002
then
cat dim_copy.20080516.sql | grep -i "CREATE VIEW" | grep -v OPSDM002 | awk '{print "OPSDM002."$3 }' > dim_copy.20080516.sql1
sed -e '/^CREATE VIEW/s/\(.*\.\)\(.*\)/\1VW_\2/' dim_copy.20080516.sql1 > dim_copy.20080516.sql
else
echo "file does not have view in it "
fi
here is sh -x one
#sh -x view_add.shl
+ [[ -n 1 ]]
+ return
+ grep CREATE VIEW dim_copy.20080516.sql
CREATE VIEW MOUSE_UHC AS SELECT DT_SYS_ID ,DAY_ABBR_CD,LST_DAY_MO_IND,MONTH_NBR,FULL_DT,DAY_NBR FROM DIM_COPY;
CREATE VIEW OPSDM002.TABLE_UHC AS SELECT DAY_ABBR_CD,LST_DAY_MO_IND,MONTH_NBR,FULL_DT,DAY_NBR,LOAD_DT,WEEK_NBR_YR,SEQ_NBR
+ sed -e /^CREATE VIEW/s/\(.*\.\)\(.*\)/\1VW_\2/ dim_copy.20080516.sql
+ 1> dim_copy.20080516.sql1
+ cat dim_copy.20080516.sql1
+ 1> dim_copy.20080516.sql
Thanks a lot for your effort ,
Daya
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LEARN ABOUT DEBIAN
sql::translator::parser::postgresql
SQL::Translator::Parser::PostgreSQL(3pm) User Contributed Perl Documentation SQL::Translator::Parser::PostgreSQL(3pm)
NAME
SQL::Translator::Parser::PostgreSQL - parser for PostgreSQL
SYNOPSIS
use SQL::Translator;
use SQL::Translator::Parser::PostgreSQL;
my $translator = SQL::Translator->new;
$translator->parser("SQL::Translator::Parser::PostgreSQL");
DESCRIPTION
The grammar was started from the MySQL parsers. Here is the description from PostgreSQL:
Table: (http://www.postgresql.org/docs/view.php?version=7.3&idoc=1&file=sql-createtable.html)
CREATE [ [ LOCAL ] { TEMPORARY | TEMP } ] TABLE table_name (
{ column_name data_type [ DEFAULT default_expr ]
[ column_constraint [, ... ] ]
| table_constraint } [, ... ]
)
[ INHERITS ( parent_table [, ... ] ) ]
[ WITH OIDS | WITHOUT OIDS ]
where column_constraint is:
[ CONSTRAINT constraint_name ]
{ NOT NULL | NULL | UNIQUE | PRIMARY KEY |
CHECK (expression) |
REFERENCES reftable [ ( refcolumn ) ] [ MATCH FULL | MATCH PARTIAL ]
[ ON DELETE action ] [ ON UPDATE action ] }
[ DEFERRABLE | NOT DEFERRABLE ]
[ INITIALLY DEFERRED | INITIALLY IMMEDIATE ]
and table_constraint is:
[ CONSTRAINT constraint_name ]
{ UNIQUE ( column_name [, ... ] ) |
PRIMARY KEY ( column_name [, ... ] ) |
CHECK ( expression ) |
FOREIGN KEY ( column_name [, ... ] )
REFERENCES reftable [ ( refcolumn [, ... ] ) ]
[ MATCH FULL | MATCH PARTIAL ]
[ ON DELETE action ] [ ON UPDATE action ] }
[ DEFERRABLE | NOT DEFERRABLE ]
[ INITIALLY DEFERRED | INITIALLY IMMEDIATE ]
Index: (http://www.postgresql.org/docs/view.php?version=7.3&idoc=1&file=sql-createindex.html)
CREATE [ UNIQUE ] INDEX index_name ON table
[ USING acc_method ] ( column [ ops_name ] [, ...] )
[ WHERE predicate ]
CREATE [ UNIQUE ] INDEX index_name ON table
[ USING acc_method ] ( func_name( column [, ... ]) [ ops_name ] )
[ WHERE predicate ]
Alter table:
ALTER TABLE [ ONLY ] table [ * ]
ADD [ COLUMN ] column type [ column_constraint [ ... ] ]
ALTER TABLE [ ONLY ] table [ * ]
ALTER [ COLUMN ] column { SET DEFAULT value | DROP DEFAULT }
ALTER TABLE [ ONLY ] table [ * ]
ALTER [ COLUMN ] column SET STATISTICS integer
ALTER TABLE [ ONLY ] table [ * ]
RENAME [ COLUMN ] column TO newcolumn
ALTER TABLE table
RENAME TO new_table
ALTER TABLE table
ADD table_constraint_definition
ALTER TABLE [ ONLY ] table
DROP CONSTRAINT constraint { RESTRICT | CASCADE }
ALTER TABLE table
OWNER TO new_owner
View table:
CREATE [ OR REPLACE ] VIEW view [ ( column name list ) ] AS SELECT query
AUTHORS
Ken Y. Clark <kclark@cpan.org>, Allen Day <allenday@ucla.edu>.
SEE ALSO
perl(1), Parse::RecDescent.
perl v5.14.2 2012-05-01 SQL::Translator::Parser::PostgreSQL(3pm)