Date: 06/02/11 (SQL Server)    Keywords: database, asp, sql, security, microsoft

Passing this along for a friend...If you know anyone looking, please let me know.  Pay terms seem to be a little higher than normal for that many years of experience.  

Responsibilities:

• Installation, configuration, customization, maintenance and performance tuning of SQL Server 2005 & 2008 including SSIS, SSAS and SSRS.
• SQL version migration, patching and security management.
• Monitor database server capacity/performance and make infrastructure and architecture recommendations to management for necessary changes/updates.
• Perform database optimization, administration and maintenance (partitioning tables, partitioning indexes, indexing, normalization, synchronization, job monitoring, etc).
• Manage all aspects of database operations including implementation of database monitoring tools, event monitoring, diagnostic analysis, performance optimization routines and top-tier support for resolving support issues.
• Work with internal IT operations teams to troubleshoot network and server issues and optimize the database environment.
• Establish and enforce database change management standards including pushes from development to QA, on to production, etc;
• Proactively stay current with latest technologies and industry best practices associated to the position and responsibilities.
• Provide development and production support to troubleshoot day-to-day database or related application issues.
• Develop, implement and verify processes for system monitoring, storage management, backup and recovery.
• Develop, implement and verify database backup and disaster recovery strategies.
• Design and implement all database security to ensure integrity and consistency among the various database regions
• Develop and maintain documentation of the production environment.
• Manage SLAs and strict adherence to production controls - Sarbanes-Oxley (SOX) monitored via external audits

• Must have experience on SQL Server 2005.
• Good exposure on Installation, Configuration of database Clusters, Replication, Log shipping and Mirroring
• Expertise in Troubleshooting and performance monitoring SQL Server Database server (Query Tuning, Server Tuning, Disk Performance Monitoring, Memory Pressure, CPU bottleneck etc.)
• Expertise in T-SQL and writing efficient and highly performing SQL Statements.
• Expertise in SQL Server Internals, wait events, profiler, windows events etc
• Must have understanding of key infrastructure technologies such as Clustering, SAN Storage, Virtualization, Cloud services etc.

• System administration fundamentals including Installation, Configuration & Security setups.
• Experience with SQL 2008 a plus.
• Experienced in architecting high availability, business resumption and disaster recovery solutions
• Microsoft SQL Server DBA Certification
• Experience with SCOM/SCCM/SCSM is a plus
• Extremely self motivated and ability to work within a globally dispersed team.

• Data Warehouse experience
• VLDB experience highly desired
• Experience with databases > 5 TB, processing 2 million + rows of data daily
• MS SQL Server 2005 Transact-SQL (T-SQL)
• Stored Procedure Development Communication Skills, work well with the team, and within team processes
• Database and file size and space forecasting ability
• Ability to manage a complex database system and assist the client with Database Integration for Future Business Intelligence efforts
• Confio Ignite Performance

• Bachelor's degree in Computer Science, Business Administration or other
• 10+ years experience as a Database Administrator 

Source: https://sqlserver.livejournal.com/75423.html

Date: 03/11/11 (SQL Server)    Keywords: sql

 In our last entry we talked about getting datafile usage in SQL Server.  Today, we'll implement sp_file_space in another stored procedure that combines it with the extended stored procedure xp_fideddrives to calculate the free space and stores the data in two standard tables.

CREATE PROCEDURE [dbo].[sp_log_spaceused]
as
create table #freespace
(
drive char(1) null,
MBfreespace bigint null
)


set nocount on

delete from #freespace
-- log this servers current space used
insert into file_space_log exec.master.dbo.sp_file_space

-- log the freespace
insert into #freespace
(
drive,
MBfreespace
)
exec master.dbo.xp_fixeddrives

-- server_drive_space insert
insert into free_space_log
select
drive,
MBfreespace
from #freespace


GO


** Please be responsible with free code.  Test and check before implementing in a production environment
 

Source: https://sqlserver.livejournal.com/73862.html

Date: 03/09/11 (SQL Server)    Keywords: database, sql

 Here's a good question for data environments today.  What methods do you employ to track datafile growth in your SQL Server databases?  Do you use a 3rd-party tool, or do you have a home-brew method?  I'll share my method once we read about other's ideas.

Source: https://sqlserver.livejournal.com/73430.html

Date: 02/15/11 (SQL Server)    Keywords: sql

 It looks like we haven't had much discussion here in quite a while, so as the community owner, I will try to stir some discussion.  

How do you promote your SQL scripts throughout your development, test, and prod environments?

Source: https://sqlserver.livejournal.com/73157.html

Date: 09/28/10 (SQL Server)    Keywords: html, sql

Posting for the benefit of all after personally pulling my hair out on this one...

1) Installed the Oracle Instant Client following these wonderful directions:
http://www.dbatoolz.com/t/installing-oracle-instantclient-basic-and-instantclient-sqlplus-on-win32.html

2) Restarted my SQL server to re-load the ODBC drivers

3) Created linked server

USE master
go
EXEC sp_addlinkedserver @server=N'ORCL_SRVR', @srvproduct=N'', @provider=N'MSDASQL', @datasrc=N'ORCL_SRVR'
go
EXEC sp_serveroption @server=N'ORCL_SRVR', @optname='rpc', @optvalue='true'
go
EXEC sp_serveroption @server=N'ORCL_SRVR', @optname='collation compatible', @optvalue='false'
go
EXEC sp_serveroption @server=N'ORCL_SRVR', @optname='data access', @optvalue='true'
go
EXEC sp_serveroption @server=N'ORCL_SRVR', @optname='rpc out', @optvalue='false'
go
EXEC sp_serveroption @server=N'ORCL_SRVR', @optname='use remote collation', @optvalue='true'
go
EXEC sp_addlinkedsrvlogin @rmtsrvname=N'ORCL_SRVR', @useself='FALSE', @rmtuser=N'system', @rmtpassword=N'my password'
go
IF EXISTS (SELECT * FROM master.dbo.sysservers WHERE srvname=N'ORCL_SRVR')
PRINT N'<<< CREATED LINKED SERVER ORCL_SRVR >>>'
ELSE
PRINT N'<<< FAILED CREATING LINKED SERVER ORCL_SRVR >>>'
go

Source: https://sqlserver.livejournal.com/72406.html

Date: 11/18/09 (SQL Server)    Keywords: asp, sql, security, web, microsoft

http://technet.microsoft.com/en-us/sqlserver/dd353197.aspx

Has anyone implemented security using the LOGON TRIGGER that came out with SQL Server 2005 SP2?

I'm just curious if anyone has setup this feature to protect their SQL Server from attack through their web servers.

Source: https://sqlserver.livejournal.com/71849.html

Date: 10/15/10 (MySQL Communtiy)    Keywords: mysql, database, sql

A database application I've written uses a table with around 600,000 rows. Each row has a text field 500-5000 characters long. I periodically need to find all the rows containing a particular phone number, name, or address, ie.'123-4567', 'john smith', '1950 Main St N'

I'm doing this using
SELECT * FROM `tb_archive` WHERE `text` LIKE '%john smith%' ORDER BY `date` DESC

The problem is that it is too slow. Most searches take 30-60 seconds. If multiple searches are done the server response begins to slow to a crawl for other users.

I've looked at mysql built in full-text indexing - but I'm not sure if it can work since I only need exact matches, don't care about relavence, and often search for numbers and short words.

Any suggestions as to how I can do this more efficiently?

Source: https://mysql.livejournal.com/138390.html

Date: 10/09/09 (MySQL Communtiy)    Keywords: mysql, database, sql

Anyone know how to store a MySQL database schema (and maybe data from some tables hopefully based on table structure) into SVN?

Source: https://mysql.livejournal.com/137943.html

Date: 09/22/09 (MySQL Communtiy)    Keywords: mysql, database, sql

I found an instruction set that said to list the first, and last name of all employees that had neither 'SON' nor 'DAUGHTER' listed in their dependency files. I came up with a query that gave me the results I wanted by assuming the database only takes SPOUSE, SON, and DAUGHTER, but assuming has always caused me trouble, so I would like to know: Is there any better way I could have gone about approaching this so it's not going by a general assumption of dep_relation = 1, and so forth?

mysql> SELECT * FROM dependent;
+-------------+------------+------------+-------------------+------------------+
| dep_emp_ssn | dep_name   | dep_gender | dep_date_of_birth | dep_relationship |
+-------------+------------+------------+-------------------+------------------+
| 999444444   | Jo Ellen   | F          | 1996-04-05        | DAUGHTER         | 
| 999444444   | Andrew     | M          | 1998-10-25        | SON              | 
| 999444444   | Susan      | F          | 1975-05-03        | SPOUSE           | 
| 999555555   | Allen      | M          | 1968-02-29        | SPOUSE           | 
| 999111111   | Jeffery    | M          | 1978-01-01        | SON              | 
| 999111111   | Deanna     | F          | 1978-12-31        | DAUGHTER         | 
| 999111111   | Mary Ellen | F          | 1957-05-05        | SPOUSE           | 
+-------------+------------+------------+-------------------+------------------+


mysql> SELECT * FROM employee;
+-----------+---------------+----------------+
| emp_ssn   | emp_last_name | emp_first_name |
+-----------+---------------+----------------+
| 999666666 | Bordoloi      | Bijoy          | 
| 999555555 | Joyner        | Suzanne        | 
| 999444444 | Zhu           | Waiman         | 
| 999887777 | Markis        | Marcia         | 
| 999222222 | Amin          | Hyder          | 
| 999111111 | Bock          | Douglas        | 
| 999333333 | Joshi         | Dinesh         | 
| 999888888 | Prescott      | Sherri         | 
+-----------+---------------+----------------+



What I generated was:

SELECT emp_first_name, emp_last_name 
FROM 
	(
	SELECT emp_first_name, emp_last_name,
	dep_relationship, COUNT(dep_relationship) AS count 
	FROM dependent 
	JOIN employee ON dep_emp_ssn = emp_ssn 
	GROUP BY emp_ssn
	) tempTable 
WHERE tempTable.count = 1 
AND tempTable.dep_relationship != 'SON' 
AND tempTable.dep_relationship != 'DAUGHTER';

To get:

+----------------+---------------+
| emp_first_name | emp_last_name |
+----------------+---------------+
| Suzanne        | Joyner        | 
+----------------+---------------+

Source: https://mysql.livejournal.com/137636.html

Date: 08/07/09 (MySQL Communtiy)    Keywords: mysql, database, sql

I am not entirely sure if this is the right place to ask but I thought to give it a shot anyway.
I want to create a new MySQL Database so I downloaded MySQL 4.1.22 for Windows and installed it. After installing it I have the program MySQL Command Line Client and MySQL Server Instance Config Wizard. For both of them I need a root user name and a root password but how do I know those, where can I find them?
i hope you can help me.

Source: https://mysql.livejournal.com/137190.html

Date: 07/20/09 (MySQL Communtiy)    Keywords: php, mysql, xml, database, sql

hey again
i'm trying to convert an oracle db to mysql. so far everything is going ok except for the files in the db. the old admin was storing jpg, pdf, doc, xml files and whatever else you can think of into a blob field in the table on oracle.

is this the best way to do things? i mean sure all you need to do is back up the database and presto you have all the files. but i'm having a hell of a time getting a backup. 440 entries in the table comes up to a 180 megabyte text file. phpmyadmin won't process the file because it times out, sqlyog and navicat are having trouble with the file size saying they're running out of memory.


the closest i've come to completing this transfer is using toad for oracle and outputting the table to an mdb file. then in navicat i use the wizard and import the mdb, it sees the fields of the table perfectly, but the blobs come out having 0k. aside from that small issue i keep getting error 2006 when importing. and lose between 3 and 219 entries depending on the time i'm importing.

so, at a loss, am i doing things right? is it possible to convert oracle blobs to mysql blobs? personally if i had written the original site i would just save a link to the actual file in the db and not store the actual file in the db. does that make sense?


*UPDATE*
so i tried using the migration tool, no luck. i'm missing libraries and my tech guy wasn't here yesterday. the site for the oracle libraries didn't want to work either.
so this is what i ended up doing:
in toad i saved a csv/txt file of the table without the blobs in the csv. cut the size down to 88k.
i uploaded that via sqlyog into the db. no problems.
then in toad i saved the blobs themselves as individual .dat files. so at least i have the files this way.
the db actually has the filename in it, so it was just a simple extracting the filename, copying the .dat files from one folder to another on the server with a simple php script and changing the names to reflect their actual names. all the files can be opened no problem once the name have been changed.

now i just need to link to said files from db to directory on the server.

thanks again for the input :)

Source: https://mysql.livejournal.com/136836.html

Date: 07/14/09 (MySQL Communtiy)    Keywords: mysql, sql

I have some difficulties in building a right query for a situation. A MySQL Table 'patients' looks like this

Name Doctor Date
-------------------------------
John Deere Dr.Watson 2009-02-11
Bill Fairy Dr.Dylan 2009-03-03
John Deere Dr.Dylan 2009-05-19

I'm trying to count records with same Name field AND all other fields in reply must contain appropriate field in LAST record (based in Date field). I'm doing following query:

SELECT *, COUNT(*) AS num FROM patients GROUP BY name, HAVING COUNT(*)>1 ORDER BY date DESC;

I think that ORDER BY DESC helps me to get in reply fields of last record. But in reply I always receive data contained in my oldest record :( I stumbled :) Anyone can help?

Thanks in advance.

Source: https://mysql.livejournal.com/136661.html

Date: 06/23/09 (MySQL Communtiy)    Keywords: mysql, sql

In the EXPLAIN below, is ref: NULL a bad thing?

mysql> explain SELECT * FROM mytable WHERE item_id='09N1320347' AND value_id IN (2,3,4,5,6,7,8,9);
+----+-------------+------------------------+-------+---------------+-------+---------+------+------+-------------+
| id | select_type | table | type | possible_keys | key | key_len | ref | rows | Extra |
+----+-------------+------------------------+-------+---------------+-------+---------+------+------+-------------+
| 1 | SIMPLE | mytable | range | PRIMARY,item_id | item_id | 18 | NULL | 6 | Using where |
+----+-------------+------------------------+-------+---------------+-------+---------+------+------+-------------+
1 row in set (0.00 sec)

Indexes:
Keyname Type Cardinality Action Field
PRIMARY PRIMARY 2240917 item_id, color_id
item_id INDEX 93371 item_id, value_id

Source: https://mysql.livejournal.com/135843.html

Date: 06/19/09 (MySQL Communtiy)    Keywords: mysql, database, sql

I've been handed a legacy app with a mysql database to extend/upgrade. The system is a mess. Lab tests are stored in a single table, with over 200 columns containing marker values. The labtest table includes the DateTestCollected. A separate table holds patient demographics, including DateOfBirth and Sex.

In the past, we scanned lab results and identified possible abnormalities based on one or more markers. The same cutoff values were used regardless of age or sex. So -- SELECT COUNT(*) FROM labtest WHERE marker_1>$m_1_cutoff_high OR marker_1<$m_1_cutoff_low; Even with the less than ideal schema, indexes on the marker columns made this kind of query work relatively well.

New algorithms are being put into place. Instead of just looking at one or two markers, we now must look at the age & sex to determine which cutoff values to use, then apply our algorithm. I now have 12 possible variations of the same algorithm.

(ie:

WHERE
date_of_test>'2008-01-01' AND
date_of_test<'2008-04-01' AND
(

( age_rage='0-9' AND sex='m' AND ( marker_1 < 876 AND marker_1 > 345) ) OR
( age_rage='10-19' AND sex='m' AND ( marker_1 < 824 AND marker_1 > 312) ) OR
( age_rage='20-29' AND sex='m' AND ( marker_1 < 798 AND marker_1 > 311) )

) OR (

( age_rage='0-9' AND sex='f' AND ( marker_1 < 987 AND marker_1 > 465) ) OR
( age_rage='10-19' AND sex='f' AND ( marker_1 < 813 AND marker_1 > 404) ) OR
( age_rage='20-29' AND sex='f' AND ( marker_1 < 701 AND marker_1 > 209) )

) OR (
/* ect */
)

There are actually 12 variations to check against. This query is very slow, especially when iterating through 200+ markers (200 x 12 variations). EXPLAIN showed that MySQL is scanning all rows (50,000) - as soon as I applied a multi-column index (date_of_test, marker_1) MySQL stopped scanning the entire table.

Under the current schema, each marker, age, sex, and date_of_test column is indexed separately (no multi-column indexes). There are limits to the number of indexes per table.

So that's where I am. I have a legacy system in need of work, but I'm not sure of the best, most efficient way of approaching the problem.

I thought of converting the labtest table to something like (labtest_id, marker_id, marker_value), but that alone doesn't solve the issue of having to find the age & sex of each patient to determine the correct marker cutoff value.

What would be the least painful way of working through this?

Source: https://mysql.livejournal.com/135617.html

Date: 06/05/09 (MySQL Communtiy)    Keywords: mysql, database, sql

Hi Folks. I'm hoping this is a simple question, but its baffling me.

I have a mySQL 5.0.27 DB. I am trying to give people "show view" and "create view" privs for a specific database. When I execute the commands to do this, they seem to be accepted with no problem - no syntax error, no warning. However when I then do a show grants on the person the "view privs" do not show up, and they confirm that they do not have those privs.

I have flushed privileges as well, which was my first thought, but that is not the case.

I do seem to be able to grant or revoke other privs.

Views are new to us, but they were included in 5.0.1 so I should have them.

Anyone have any thoughts?

Source: https://mysql.livejournal.com/135180.html

Date: 03/30/09 (MySQL Communtiy)    Keywords: mysql, database, sql

We are all familiar with how valuable indexes are to mySQL (and in general) database reads. However - and specifically with respect to mySQL - what effect to indexes have to database writes?

A colleague of mine, as we are changing our DB indexing structure, has argued that indexes harm database writes since the data must be written to the database and to the index. This is a compelling argument. However, in my last job in working with Sybase SQL databases we had instances where indexes would greatly increase write efficiency apparently. I had specific experience that this was the case, but no one was able to explain to me how that was the case given what I could see where the data would have to be written in two separate places.

So, how do indexes effect the efficiency of database writes in mySQL?

Source: https://mysql.livejournal.com/133925.html

Date: 02/03/09 (MySQL Communtiy)    Keywords: mysql, database, sql

Folks may remember last week when I was asking questions about mysqldumps. I was doing that in order to get a DB backup for a specific database we wanted to replicate on another server, and I've been working on that.

After some hit and miss I think I nearly got it working, at least to a point where the replication started between the Master and the slave. It seemed to work for a few seconds, then bombed when the slave tried to execute a statement that was for a DB that it didn't have in it.

The point is that of all the several databases on the Master machine, at this point we only want to replicate one on the slave machine. I thought I had had that set up in the slave's my.cnf with the line

replicate-do-db - aid #aid is the database we want to replicate

however High Performance MySQL says that this is not the way to do this since filtering will be done on the current default database. "This is not usually what you want." :-)

The book does indicate that "On the slave, the relicate_* options filter events as the slave SQL thread reads them from the relay log." This make sense to me, and at this point it also makes sense that the log coming from the master has every statement coming into the DB. It goes on to say that "You can replicate or ignore one or more databases (emphasis mine)...based on LIKE pattern matching syntax." There is where I lose it. I understand how to use the LIKE syntax in mySQL statements, but not in this environment.

Is it possible to set up a small battery of statements in the slave my.cnf along the lines of:

replicate_ignore_table = .%

Would that do it?

Is anyone basically doing replication in a simple Master-Slave relationship where you are only replicating one DB? If so, how are you doing it?

THANKS, folks!

Source: https://mysql.livejournal.com/133717.html

Date: 01/28/09 (MySQL Communtiy)    Keywords: mysql, database, sql

Folks, I'm having what I think is a weird problem restoring a DB from a mysqldump. What I'm trying to do is basically copy a DB from one mysql database server to another.

The mysqldump command I used originally was:

mysqldump --quick --add-locks --extended-insert -u root -p dbname > dbname.sql

When this didn't work upon restoration I also tried:

mysqldump --opt -u root -p dbname > dbname.sql

Both these commands created the dbname.sql file with no problems or complaints.

I copied the SQL file over to the target computer. I went into mySQL as root and did:

create database dbname;
use dbname;
source dbname.sql;

The import would start, but it wouldn't get very far. In the end, after not many seconds it would just...stop. Here is an example:

Query OK, 8708 rows affected (0.11 sec)
Records: 8708 Duplicates: 0 Warnings: 0

Query OK, 8750 rows affected (0.12 sec)
Records: 8750 Duplicates: 0 Warnings: 0

Query OK, 8740 rows affected (0.11 sec)
Records: 8740 Duplicates: 0 Warnings: 0

Query OK, 8758 rows affected (0.11 sec)
Records: 8758 Duplicates: 0 Warnings: 0

Query OK, 8745 rows affected (0.12 sec)
Records: 8745 Duplicates: 0 Warnings: 0

^CQuery aborted by Ctrl+C
^CAborted
mysql: 0 files and 1 streams is left open

$

Source: https://mysql.livejournal.com/133572.html

Date: 12/17/08 (MySQL Communtiy)    Keywords: mysql, database, sql

I need to "synchronize" the output of a stored procedure in one database (I don't have access to any tables there, just stored procedures) and a table in another database. So I need to call a remote stored procedure once in a while and populate a local table with its output. For the remote database, I know hostname, port, username, password and db name.

Is this possible in mysql? Any help would be appreciated

Source: https://mysql.livejournal.com/133145.html

Date: 12/11/08 (MySQL Communtiy)    Keywords: mysql, database, sql

I'm starting a new consulting gig that requires me to work on a MySQL database. Typically, I use Rapid SQL as my IDE, but I have been informed that it doesn't support 5.x. What IDEs out there support MySQL 5?

Source: https://mysql.livejournal.com/132964.html