0
votes
1answer
1k views

Slow performance of MySQL Join Query

I have inherited a site (running Coldfusion8 and MySQL 5.0.88) with a product search using multiple criteria. I'm struggling with optimizing the search, especially a pricelist check, which makes the ...
8
votes
2answers
6k views

Can Windows Authentication logins be disabled on SQL Server 2008 (or R2)?

So we can do Windows Login or Mixed Mode, but can we configure SQL Server to only use internal logins and to block all Windows Logins? Is the only solution to add all potential Windows logins and set ...
1
vote
1answer
861 views

decreased performance of stored procedure when migrated from mysql server 5.0 to 5.5

i recently testing the move of our db from one server to another. as part of this process i copied all the data to the new db and started testing it. as a comparison i run a store procedure whose ...
5
votes
2answers
6k views

Clean trace files on Oracle 11g

The partition containing my Oracle 11g installation began to fill up with trace files and when I went looking for what are these I've found this disturbing post about how to disable the trace file ...
3
votes
1answer
2k views

how to find oracle calculated/computed column list using data dictionary views

I would like to find computed column list in oracle database using Oracle Data Dictionary Views. I would like to add more information. Suppose I have following computed/calculated column in ...
5
votes
1answer
684 views

How to customize constraint violation messages?

I want define my own message for each constraint. Is it possible to customize constraint violation messages in PostgreSQL?
2
votes
1answer
1k views

How should I deploy these SSRS reports?

I need to make a decision about deployment and security of some SSRS reports and would like some advice on what the most appropriate method is. We have 40+ sites that have access to information for ...
3
votes
1answer
5k views

How can I insert smiley faces into MySQL ( 😊 )

I'm on MySQL 5.5.21, and trying to insert the '\xF0\x9F\x98\x8A' smiley face character. But for the life of me, I can't figure out how to do it. According to various forums which I've been reading, ...
2
votes
1answer
3k views

Dealing with NULL values and EMPTY strings in UNION of two tables

I want return records from two database tables when a record differs in at least one of the fields. I have written a query for it using the UNION operator. It is working absolutely fine. However, I ...
1
vote
2answers
175 views

How do automaticly delete rows from other tables

I have a MySql DB. I have a table - recipes. Also have 2 tables -ingredients and instructions. both have for each entry - a foreign key to the related recipe. I want that when I delete an entry from ...
1
vote
1answer
122 views

mysql dummy where check to utilize multi column index

I have multi-column index on col1,col2. Both columns are unsigned int with values 1 or greater. I want WHERE col2=100. I write WHERE col1>0 AND col2=100. The query should now use my index. Does ...
2
votes
0answers
685 views

How to do automated archiving for a SQL Server database based on interpretation of database metadata?

I am looking for a solution giving me automated archiving of SQL Server databases based on a smart interpretation of table relationships that is able to archive records from related tables minimizing ...
3
votes
2answers
1k views

SQL Server 2012 - Frequent SELECT and UPDATE on bit column. Index doesn't help

I have a SQL Server table with about 2 million rows in, this table stores short textual documents. Here's my schema: CREATE TABLE Documents ( documentId bigint IDENTITY NOT NULL, content ...
3
votes
1answer
649 views

Why am I getting Table scan on a partitioned table query?

I have table Inventory_Break partitioned on IR_ID (int). I also created a non-clustered index for IR_ID on the table. When I run the following: SELECT * FROM dbo.INVENTORY_BREAK WHERE IR_ID ...
1
vote
2answers
4k views

MySQL - INSERT INTO … SELECT … UNION

I'm having an issue with a fairly complex query where I need to store the ids from one table (based on heavy criteria) into a narrow, alternate table for future reference, but I keep running into a ...
5
votes
1answer
38k views

CASE statement with IS NULL and NOT NULL

Is there any better way to write the lines below in SQL Server 2005? CASE WHEN (ID IS NULL) THEN 'YES' WHEN (ID IS NOT NULL) THEN 'NO' END AS ID_Value,
1
vote
1answer
78 views

How can I select data with one query?

I have the following tables: Table xwrh9_betty_dictionary_ids +----+----------+-------+-------------+---------------------+-------+-------+ | id | ordering | state | checked_out | checked_out_time ...
3
votes
2answers
100 views

can access to a view be controlled by access to a referenced table?

I have a table Table_A and a view View_A that is a select of the contents of Table_A. If I deny SELECT on Table_A to a user, the user can still use the view View_A. Is there a way that I can force ...
4
votes
1answer
311 views

PostrgeSQL 9.1 Certificate Authentication: how to get certificate common name of client?

I am using Certificate Authentication for clients on a PostgreSQL 9.1 database server. Several certificate common names are mapped to a single database user in pg_ident.conf. I do not want to create ...
0
votes
2answers
934 views

Trying to import a large sql file using BigDump. Partial fail occuring

Problem: I am using the php script: BigDump to import a sql file that phpMyAdmin says has 9344926 rows. However when I run it, BigDump calculates and inserts 4050623 rows It should have Total: ...
3
votes
0answers
443 views

SQL Server 2008 replication scenario

First of all sorry about my english, and most importantly, my database ignorance, I'll do my best ;) Until now, the scenario that I have is as follows: In a server under our LAN, we have a database ...
3
votes
2answers
3k views

How to setup mysql on tmpfs?

How to setup mysql on tmpfs ? I am reading a tutorial in french, where the author do it this way : 1.) Create a tmpfs directory : mkdir /var/tmpfs mount -t tmpfs -o size=1G tmpfs /var/tmpfs chown ...
0
votes
1answer
343 views

Salvaging data from corrupt tables PostgreSQL

Am in the process of salvaging very crucial data from a corrupted database. Am getting the following error from a very crucial table ERROR: invalid page header in block 94206 of relation ...
3
votes
4answers
2k views

Optimising MySQL

As per this post, it looks like I'm having some serious issues with MySQL optimisation. Unfortunately, I have no idea where to start! I'm running a DirectAdmin-based CentOS dedicated server. It's an ...
14
votes
1answer
1k views

Are there reasons why I should not set my db owner to [sa]?

Yesterday I asked this question regarding changing the dbo of multiple databases that I have. The change makes sense, but I want to be clear. Is there any, good reason or circumstance why I should ...
2
votes
2answers
1k views

sql bulk delete is much slower?

I have a DB that is about 3.5GB. 2 tables use most spaces. each table has about 2.8M rows. now I need to delete about 1.9M rows from each table. using the batch delete DELETE TOP (n) syntax, then ...
1
vote
1answer
3k views

Oracle backup with RMAN Options?

I'm trying to learn RMAN but getting confused everytime I read Oracle docs! Can someone help me what are the differences and when to use the following? BACKUP DATABASE PLUS ARCHIVELOG DELETE INPUT ...
1
vote
3answers
4k views

Unable to mount oracle instance

I am trying to shutdown the system, then I want to mount it. I have tried this: SQL> shutdown immediate; Database closed. Database dismounted. ORACLE instance shut down. SQL> startup mount; ...
0
votes
1answer
887 views

How to restore mysql from only myi files?

our server hdds has crashed and we didnt have a current backup so we sent our hdds to a data recovery company, they have been working on hdd's for over a week and they have finally managed to save ...
2
votes
0answers
337 views

Upgrading Remote Distributor in SQL Server Replication

I'm upgrading my remote distributor from 2005 to 2008r2, it is performing transactional replication only. this is a prerequisite to completing an upgrade of the Publisher to 2008r2. Script ...
1
vote
1answer
141 views

slave issue with load data

When I use "load data infile" on master, the data is properly transferred to slave. But when I use "load data local infile" from remote server to master, the data does not pass on to slave. Why does ...
8
votes
3answers
10k views

Improve performance of sys.dm_db_index_physical_stats

During a maintenance job, I'm trying to get a list of fragmented indexes. But the query is extremely slow and takes over 30 minutes to execute. I think this is due to a remote scan on ...
2
votes
3answers
1k views

MySQL backup with no downtime [closed]

I'm running a M/S replication of MySQL 5.5 / innoDB (over ubuntu). My DB is pretty large: ~250GB. I'm looking for a backup tool/service that will do the following: full backup no downtime / locks ...
2
votes
3answers
2k views

Replicating only significant records to specific database

I have a remote database which holds data for various databases in various locations. I want to do database replication, but only data specific to a certain database should be replicated to it. I can ...
0
votes
1answer
6k views

How to give SQL Server Job Owner permission to Proxy a Credential

I've created a Credential Cred1 (DOMAIN\USER1 with the secret = domain password) I've created a SQL Agent job with owner to NT AUTHORITY\SYSTEM The job needs to proxy as credential Cred1 So when I ...
0
votes
1answer
450 views

MySQL ODBC + setting up a DSN on windows + MySQL Workbench

Sorry for the vague title, but here's my problem. I connect to my database in MySQL Workbench using the following method : TCP/IP over SSH However, when I try to set up the DSN on Windows 7 via: ...
1
vote
2answers
194 views

Is there a way to get slow-query-log-like profiling information on a single query?

Specifically, I'm looking for this information: # Query_time: 0.011922 Lock_time: 0.000088 Rows_sent: 107 Rows_examined: 663 Rows_affected: 0 Rows_read: 107 # Bytes_sent: 4152 Tmp_tables: 3 ...
4
votes
1answer
175 views

How to remove a database server from Utility Explorer

I use the Utility Explorer to monitor some of my databases but I forgot to remove one before retiring the server. Normally, you could just right click and select "Remove Managed Instance" but I can't ...
14
votes
3answers
4k views

Does the partition key also have to be part of the primary key?

I am partitioning a table based on a column that is not a primary key? I've read some conflicting information today on whether the partition column must be a part of the primary key. My gut says no, ...
3
votes
2answers
3k views

Oracle listagg forces SORT (GROUP BY) execution plan

I have the following query SELECT /*+ USE_HASH_AGGREGATION */ id --, count(id) , listagg(type, ', ') within group (order by null) types FROM test group by id Both type and id are short strings. ...
4
votes
3answers
2k views

What are the limits on the amount of slaves per master?

I currently have a Master with 2 slaves, all running MySql 5.5. What are the limitations on the amount of slaves I can connect to a single master? what parameters should be taken into affect?
4
votes
1answer
10k views

What can cause TRUNCATE TABLE to take a really long time?

I'm running MySQL5.5 with Master/Slave replication (1 master, 2 slaves). I have a process that runs once a week and truncate a specific table. The table is not large and only has a few thousands ...
14
votes
1answer
634 views

How does SQL Server know predicates are correlated?

While diagnosing SQL Server 2008 R2 queries with poor cardinality estimation (despite simple indexing, up-to-date statistics, etc.) and hence poor query plans, I found a perhaps-related KB article: ...
1
vote
1answer
1k views

Solutions to 4-byte utf-8 characters in mysql 5.1

I'm running into a problem that seems to be an issue w/ mysql 5.1s limitations on UTF8 characters. From http://dev.mysql.com/doc/refman/5.1/en/charset-unicode-utf8.html Currently, MySQL support for ...
5
votes
2answers
153 views

Mechanics of partitioning

Imagine the following hypothetical database structure. Basically it's a top down structure (Country has Orders, Order has OrderLines, OrderLine has ShipLines, etc...). I want to partition my SQL ...
21
votes
4answers
84k views

Restore SQL Server 2012 backup to a SQL Server 2008 database?

Is there a way to restore a SQL Server 2012 database backup to a SQL Server 2008? I tried to attach file, it does not work.
0
votes
3answers
261 views

Work out date difference when there is only one date

I have 2 records, one details when the stop clock was stopped and the other started. I only have the one date value in each record. I'm trying to work out the difference between the stop and start ...
2
votes
1answer
231 views

Active Directory domain being shutdown— Do I have to update my DBO accounts?

I manage a SQL Server machine (with SQL Server 2000 and 2005 installed) that was first created on an Active Directory domain that we are transitioning away from and are about to shut down. All of my ...
0
votes
2answers
3k views

Conversion failed when converting date and/or time from character string [closed]

I have a problem with this query: SELECT @dateforaftersixmonth=U_PYMON FROM [@CCS_PYRUNPERIODS] WHERE @STRTEMP_DATE between U_BEGDA and U_ENDDA @STRTEMP_DATE is a datetime variable and ...
5
votes
4answers
1k views

MySQL console: Ctrl+C driving me nuts

There is something in the MySQL console that drives me nuts. When I hit ctrl+c to cancel the current command being typed, the terminal exits. In every terminal I know (*nix terminals, Python, ...

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