10-26-2008
awk help required to group output and print a part of group line and original line
Hi,
Need awk help to group and print lines to format the output as shown below
INPUT FORMAT
set echo on
set heading on
set spool on
/* SCHEMA1 */ CREATE TABLE T1;
/* SCHEMA1 */ CREATE TABLE T2;
/* SCHEMA1 */ CREATE TABLE T3;
/* SCHEMA1 */ CREATE TABLE T4;
/* SCHEMA1 */ CREATE TABLE T5;
/* SCHEMA2 */ CREATE TABLE T1;
/* SCHEMA2 */ CREATE TABLE T2;
/* SCHEMA2 */ CREATE TABLE T3;
/* SCHEMA3 */ CREATE TABLE T1;
/* SCHEMA3 */ CREATE TABLE T2;
/* SCHEMA3 */ CREATE TABLE T3;
/* SCHEMA4 */ CREATE TABLE T1;
set feedback on
set spool off
DESIRED OUTPUT
set echo on
set heading on
set spool on
connect SCHEMA1
/* SCHEMA1 */ CREATE TABLE T1;
/* SCHEMA1 */ CREATE TABLE T2;
/* SCHEMA1 */ CREATE TABLE T3;
/* SCHEMA1 */ CREATE TABLE T4;
/* SCHEMA1 */ CREATE TABLE T5;
connect SCHEMA2
/* SCHEMA2 */ CREATE TABLE T1;
/* SCHEMA2 */ CREATE TABLE T2;
/* SCHEMA2 */ CREATE TABLE T3;
connect SCHEMA3
/* SCHEMA3 */ CREATE TABLE T1;
/* SCHEMA3 */ CREATE TABLE T2;
/* SCHEMA3 */ CREATE TABLE T3;
connect SCHEMA4
/* SCHEMA4 */ CREATE TABLE T1;
set feedback on
set spool off
I am looking forward to add the connect lines where all the SQL lines start with /* SCHEMAn */ values as a consistent pattern
i was able to sort the distict values of the pattern using the below awk
nawk '/^\/\* /{dup[$2]++;if (dup[$2]>=1){name[$2]=$2}};END{for(i in name)print name[i]} ' inputfile
Output
-------
SCHEMA1
SCHEMA2
SCHEMA3
SCHEMA4
but i am not sure how to place these lines in before the patterns and skip till the next pattern is found.
Thanks in advance,
Rajan
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LEARN ABOUT REDHAT
create_group
CREATE
GROUP(7) SQL Commands CREATE GROUP(7)
NAME
CREATE GROUP - define a new user group
SYNOPSIS
CREATE GROUP name [ [ WITH ] option [ ... ] ]
where option can be:
SYSID gid
| USER username [, ...]
INPUTS
name The name of the group.
gid The SYSID clause can be used to choose the PostgreSQL group id of the new group. It is not necessary to do so, however.
If this is not specified, the highest assigned group id plus one, starting at 1, will be used as default.
username
A list of users to include in the group. The users must already exist.
OUTPUTS
CREATE GROUP
Message returned if the command completes successfully.
DESCRIPTION
CREATE GROUP will create a new group in the database installation. Refer to the Administrator's Guide for information about using groups
for authentication. You must be a database superuser to use this command.
Use ALTER GROUP [alter_group(7)] to change a group's membership, and DROP GROUP [drop_group(7)] to remove a group.
USAGE
Create an empty group:
CREATE GROUP staff;
Create a group with members:
CREATE GROUP marketing WITH USER jonathan, david;
COMPATIBILITY
SQL92
There is no CREATE GROUP statement in SQL92. Roles are similar in concept to groups.
SQL - Language Statements 2002-11-22 CREATE GROUP(7)