I have been asked to use ASP on UNIX and I have no idea what the limitations are. I have pages using ASP on NT with SQL7, is there an easy transition for my current pages to work on UNIX? Any help is much appreciated. THX (5 Replies)
I had a person ask me if a Sql database can be run with Unix? I don't know can this be done? They only have Sql dba's and no oracle dba but want to use a Unix box???? (1 Reply)
Help!
SCO Unix 5.05.
A relatievely new system went down on me today. I got the dreaded error:
Out of Space on Device (1/42).
I was able to clear up some space in the /tmp directory, however, when I try to boot, the system prompts me to go into single user mode and I get the... (2 Replies)
I want to check which databases are installed on my FreeBSD installation. This is what I did: pkg_info | grep mysql
How do I check all in one go whether also sqlite, postgresql, firebird is installed?
Thanks in advance (3 Replies)
Hi,
I'm the new user of mysql. I facing one problem to delete one of the database in mysql. Hope can get all of your suggestion and advice.
Input:
mysql> show databases;
+-------------------------+
| Database |
+-------------------------+
| information_schema |
|... (3 Replies)
I am facing problems with SVM installed on vmware workstation on intel platform. I have created replicas and a mirror volume using unmountable slices. But when I reboot my hardware I am not able to execute any SVM cmd's getting an error "there are no existing databases."
Below are o/p's of few... (0 Replies)
Hi Everyone,
I am new to DBA stuff. I wonder if anyone can help me. Task is that, I have 10 databases and need to take backups of all the databases using data pump in Unix/Linux, compress them using gzip and use cron to schedule the job twice a day.
Appreciate if anyone can help me in... (1 Reply)
Hello all again,
How do you guys backup your MySQL databases?
I have a few programs that have an default back up that make an .sql file which is great but I also use OpenX which runs on PHP and has a database. That does not have an auto-back-up feature so do I just download the... (2 Replies)
Discussion started by: AimyThomas
2 Replies
LEARN ABOUT REDHAT
comment
COMMENT(7) SQL Commands COMMENT(7)NAME
COMMENT - define or change the comment of an object
SYNOPSIS
COMMENT ON
[
TABLE object_name |
COLUMN table_name.column_name |
AGGREGATE agg_name (agg_type) |
CONSTRAINT constraint_name ON table_name |
DATABASE object_name |
DOMAIN object_name |
FUNCTION func_name (arg1_type, arg2_type, ...) |
INDEX object_name |
OPERATOR op (leftoperand_type, rightoperand_type) |
RULE rule_name ON table_name |
SCHEMA object_name |
SEQUENCE object_name |
TRIGGER trigger_name ON table_name |
TYPE object_name |
VIEW object_name
] IS 'text'
INPUTS
object_name,
The name of the object to be be commented. Names of tables, aggregates, domains, functions, indexes, operators, sequences, types,
and views may be schema-qualified.
text The comment to add.
OUTPUTS
COMMENT
Message returned if the table is successfully commented.
DESCRIPTION
COMMENT stores a comment about a database object. Comments can be easily retrieved with psql's dd, d+, or l+ commands. Other user
interfaces to retrieve comments can be built atop the same built-in functions that psql uses, namely obj_description() and col_descrip-
tion().
To modify a comment, issue a new COMMENT command for the same object. Only one comment string is stored for each object. To remove a com-
ment, write NULL in place of the text string. Comments are automatically dropped when the object is dropped.
Note: There is presently no security mechanism for comments: any user connected to a database can see all the comments for objects
in that database (although only superusers can change comments for objects that they don't own). Therefore, don't put security-crit-
ical information in comments.
USAGE
Attach a comment to the table mytable:
COMMENT ON TABLE mytable IS 'This is my table.';
Remove it again:
COMMENT ON TABLE mytable IS NULL;
Some more examples:
COMMENT ON AGGREGATE my_aggregate (double precision) IS 'Computes sample variance';
COMMENT ON COLUMN my_table.my_field IS 'Employee ID number';
COMMENT ON DATABASE my_database IS 'Development Database';
COMMENT ON DOMAIN my_domain IS 'Email Address Domain';
COMMENT ON FUNCTION my_function (timestamp) IS 'Returns Roman Numeral';
COMMENT ON INDEX my_index IS 'Enforces uniqueness on employee id';
COMMENT ON OPERATOR ^ (text, text) IS 'Performs intersection of two texts';
COMMENT ON OPERATOR ^ (NONE, text) IS 'This is a prefix operator on text';
COMMENT ON RULE my_rule ON my_table IS 'Logs UPDATES of employee records';
COMMENT ON SCHEMA my_schema IS 'Departmental data';
COMMENT ON SEQUENCE my_sequence IS 'Used to generate primary keys';
COMMENT ON TABLE my_schema.my_table IS 'Employee Information';
COMMENT ON TRIGGER my_trigger ON my_table IS 'Used for R.I.';
COMMENT ON TYPE complex IS 'Complex Number datatype';
COMMENT ON VIEW my_view IS 'View of departmental costs';
COMPATIBILITY
SQL92
There is no COMMENT in SQL92.
SQL - Language Statements 2002-11-22 COMMENT(7)