1
vote
2answers
26k views

Simple query with date type requires explicit conversion to_date of date

My question is, I have a table which contains a column called myDateColumn (for example) which is of the type date: I can confirm desc myTable contains this line: myDateColumn NOT NULL DATE ...
3
votes
1answer
1k views

How to wait between PostgreSQL DB restore and reindexing?

I've written a script to upgrade PostgreSQL from 8.2.1 to 9.2.1 on a Linux From Scratch distribution: Start the pg service Vacuum all DBs (not sure if this is needed) Backup with pg_dumpall Stop the ...
1
vote
1answer
769 views

PostgreSQL - How can I manage WAL archiving for different databases on a server?

I'd like to use WAL archiving for incremental backup of my database. But I have 2 databases on my server, and I can't afford the disc space for backup of both of them. So I only want to backup one of ...
6
votes
3answers
7k views

Attempt to fetch logical page (5:65424) in database 2 failed

I am getting following SqlException on calling a stored procedure - Attempt to fetch logical page (5:65424) in database 2 failed. It belongs to allocation unit 7349876362857938944 not to ...
2
votes
1answer
239 views

SQL Server 2000 : List of tables ordered from by number of referenced tables

Is there any way in SQL Server 2000 to get a list of tables ordered by dependency? I need it for insert order in empty data base. I can't turn off constraints, so I'm stuck with this solution. ...
1
vote
1answer
1k views

Data dictionary best practices in SQL Server 2008 r2 [closed]

We are interested in sharing the meta data and data dictionary among the team. I know that we can use the Extended Properties for this purpose, but based on my experience I've seen it gets out of date ...
2
votes
1answer
827 views

Populating an empty table using loops, conditionals, and accessing multiple tables

This question pertains to a MySQL database, although, in the end, this may be database neutral. I am trying to populate an empty table (let's call it NewTable) that I created. The data population is ...
2
votes
2answers
3k views

MySQL order by - one column conditional on another column

In MySQL I have a table (simplified for this question) CREATE TABLE `projects` ( `id` int(11) NOT NULL AUTO_INCREMENT, `title` varchar(255) NOT NULL, `priority` int(11) DEFAULT '1000000', ...
9
votes
1answer
846 views

Is the optimisation fence behaviour of a CTE (WITH query) specified in the SQL:2008 standard? If so, where?

I see frequent references to WITH queries (common table expressions, or CTEs) acting as an optimisation fence, where the server isn't permitted to push filters down into the CTE queries, pull common ...
2
votes
1answer
200 views

PLSQL Package - Catching Errors in procedure (Oracle)

I have a problem with my package (and procedure) not catching exceptions. I have the below code: CREATE OR REPLACE PACKAGE process_orders IS PROCEDURE add_order ( order_num NUMBER, ...
2
votes
2answers
428 views

Does MySQL have information_schema.VIEW_COLUMN_USAGE or an equivalent?

SQL Server has a an information_schema view, 'VIEW_COLUMN_USAGE', which you can use to determine the actual/base tables that the columns in a view reside in. I'm looking for the equivalent in MySQL - ...
1
vote
1answer
402 views

How Can I Isolate A Merge Replication Timeout

I am using merge replication in SQL 2012 with web sync. When I create my subscription I am getting a timeout. The error message is not clear about cause of the timeout, but what I do know is if I ...
1
vote
1answer
1k views

Restoring MySQL database with db dump and binlogs

I have a database running on our production web server that I have set up as a master with a single slave in another datacenter. When reading through the MySQL replication setup instructions, they ...
6
votes
1answer
6k views

Transform all columns records to lowercase

I'm using PostgreSQL 9.1 and I have a users table with a login column. login names are case-sensitive, for example Bob, MikE, john. I would like to transform all these records into lowercase. ...
2
votes
3answers
1k views

Is there a way to tell SQLCMD not to output rows to text or a file?

I am testing the behavior of a SELECT statement that returns 170,000,000 rows using SQLCMD. My goal is to cut out the time spent receiving the result-set on the client end (the time the process shows ...
1
vote
1answer
270 views

MySql - selecting into file and re-loading it with special characters

I have a MySql table called twitter_statuses which as the title suggests holds twitter statuses. here is the table structure. this table contains all sort of characters in the text column, and some ...
0
votes
2answers
829 views

Oracle dump import

After a system failure I bought a new server and now I'm trying to recreate the Oracle database I had. I have a dump file which was made with the command exp and full=y. Can I restore the full ...
1
vote
0answers
239 views

Pass in dynamic value to Oracle job scheduler [closed]

How does one pass a dynamic value into the oracle job scheduler when the underlying command is a stored procedure? example procedure: create procedure foo (bar varchar2) ... Job creation in ...
1
vote
1answer
577 views

Optimizing User Defined Custom Columns

I am building a web based app that has the potential to have very high traffic and collect a lot of data. Most of this traffic will be utilizing the database. Database is MySQL InnoDB. I want to give ...
8
votes
3answers
4k views

Security and Performance implications of “View Server State”

This question points out that "View Server State" permission is required for various DMV's (dynamic management views), but I can't find anything about who you do and do not want to grant the ...
2
votes
2answers
2k views

Linked Server Query Results: OPENQUERY vs Distributed Transactions [closed]

I have two databases. They are on different servers. One is named REPORTDB and the other is named TRANSDB. TRANSDB is referenced as a linked server on REPORTDB named TRANS. I execute a query like ...
4
votes
5answers
303 views

How much does an index need to narrow the results of a search in order to be useful?

How much does an index need to narrow the results of a search in order to be useful in speeding up queries? Some examples all across the spectrum: A column for storing true/false values obviously ...
4
votes
1answer
2k views

SQL column goes from first to last position in output

I have an SQL query inside a SQL Server Integration Services (SSIS) package where the preview shows the column order correctly, however the actual output uses a different column order. This is ...
1
vote
2answers
1k views

How can Stored Procedures and Triggers be Automatically Loaded When MySQL Starts

Is there any straightforward method of doing as the questions asks? We are using MySQL 5.5 & Linux.
1
vote
1answer
4k views

Full-text search in SQL Server on multiple tables fails

tl;dr version: A full-text search using FREETEXTABLE that worked fine on one column in one table produces 100% false postitives and 100% false negatives when the same steps are followed but the ...
2
votes
1answer
590 views

Error creating index on PostgreSQL 9.1

I have a process where user A creates a table and user B tries to create an index on the new table, owned by A. Users A and B are from the same group but user B is an automated process. Is it ...
2
votes
1answer
689 views

MySQL Unique Index Keylength

I am hashing keys from one table that provides a 256 bit (64 char length) alphanumeric string that I intend to use in a second table as a foreign key. The engine of choice here is InnoDB. There are ...
4
votes
3answers
4k views

SQL Server Timeout: Drop and Recreate Index Solves the Issue

After having sql timeout issues with one of our queries we added a few indices that then made the query run very quickly and got rid of any timeout out issues we were having. The strange thing is ...
2
votes
2answers
813 views

Oracle symmetrical one-way replication for cheap HA: unfashionable or technically unfeasible?

We have two smallish unrelated databases on two big Oracle Enterprise servers. Instead of buying more licenses and servers for high-availability replicas, can we replicate database B to server A and ...
1
vote
2answers
137 views

How can I append a column to an inner SQL statement?

I have two tables that have the same structure except one has an additional column that should be auto-incremented. Sequence and trigger are defined. I want to copy all data from one table to ...
3
votes
1answer
671 views

Error when UPDATE all rows

When I update a single row, it works fine. But when I update all rows with: UPDATE cad_bilhetes SET ligacao_acobrar = 'False' I get the following error: Msg 512, Level 16, State 1, Procedure ...
0
votes
2answers
9k views

Couldn't install SQL Server 2012 on machine with Windows 7 SP1, VS 2010 SP1

I am trying to install SQL Server 2012 RTM on my pc, I have installed Windows 7 SP1, VS 2010 SP1 but it again and again giving this error: A network error occurred while attempting to read from ...
1
vote
1answer
321 views

Diskspace usage of DB

I have a production database that's consuming a significant amount more disk space than it should be. Using sp_spaceused (only the interesting tables), I get. Table Name Reserved (KBs) Data ...
0
votes
1answer
69 views

Mysql restore all data from Master

MySQl Slave replication server got crashed and I am missing around 60 tables, some table structure and data which present in master and by DB size is more than 25Gb, How I Can restore to resolve ...
1
vote
1answer
381 views

how to pass url value to index [closed]

How to read the value from URL and compare with index that i have created in MYSQL table. I have a form where provide list of selection using drop down list and i pass the selected value to the next ...
2
votes
1answer
678 views

Database design with different user roles connected by different relationships to one organizaiton table

An user is connected to an organization by some role. Lets say there are 2 roles freelancer and employee. One employee can only be a part of one organization and if he is an employee then he can't be ...
0
votes
1answer
1k views

SQL Server 2008, database completely locked

Our database becomes completely locked, and it seems that many tables not related to each other are locked at once. When this happens, it becomes locked for approximately 2 minutes, and when this ...
0
votes
1answer
216 views

Unable to open .sps.bak database backup file with SQL Server 2012 Express edition

I am using SQL Server 2012 Express edition. Client sent me the SQL Server backup file with the extension .sps.bak. I am not able to open it with SSMS. Please somebody help me here. I get the ...
0
votes
1answer
81 views

Problems with generating Audit SQL

Im currently working on a project that uses Oracle 10g where every action from the user is recorded in a auditlog table. The current table holds the following values: AuditID AuditDate Username Page ...
8
votes
2answers
4k views

Turning off auto shrink on all SQL Server databases. Why doesn't this work?

I figured I could use sp_MSforeachdb to solve this problem, but I get an error message. sp_MSforeachdb ' BEGIN USE [?] DECLARE @dbid INT SET @dbid = DB_ID() IF(@dbid > 4) BEGIN --PRINT ''[?]'' ...
1
vote
2answers
4k views

Why should pupbld.sql be run as SYSTEM (and not as SYS)?

pupbld.sql -- -- DESCRIPTION -- Script to install the SQL*Plus PRODUCT_USER_PROFILE tables. These -- tables allow SQL*Plus to disable commands per user. The tables -- are used only by SQL*Plus ...
1
vote
2answers
236 views

MySQL Cluster Steps To Recover Data If Catstrophic Failure Occurs

I want to know if a catstrophic failure occurs (like a power outage), and all nodes in MySQL Cluster are shutdown in cluster then data will be lost even though a backup was taken? Or it possible that ...
0
votes
1answer
125 views

unenforced constraints/possible duplication in my database design?

I am trying to store information about a school and the class timetable in a database. The outline is as follows: 'A subject has ~20 lessons, each of which needs to have it's description stored in ...
3
votes
2answers
4k views

How much memory do I need for innodb buffer pool?

I read here that You need buffer pool a bit (say 10%) larger than your data (total size of Innodb TableSpaces) On the other hand I've read elswher that innodb_buffer_pool_size must be up to ...
4
votes
1answer
328 views

Management tool for managing MongoDB sharded cluster [closed]

Is there a database management software for MongoDB that makes it easy to create a cluster, add shards, backup shards and all the complicated stuff. There are some many MongoDB clients but they are ...
2
votes
2answers
3k views

Use domain username on SQL server reporting services installed in a server which is part of a Workgroup

I have installed SQL Server 2012 on Windows Server 2008. This system is configured to be part of a Workgroup and all the users in our organisation are part of a domain. I am trying to use the ...
56
votes
4answers
102k views

How large should be mysql innodb_buffer_pool_size?

I have a busy database with solely InnoDB tables which is about 5GB in size. The database runs on a Debian server using SSD disks and I've set max connections = 800 which sometimes saturate and grind ...
5
votes
1answer
603 views

Is there anyway to make sql server search the master database for SQLCLR stored procedures before the current one?

For T-SQL stored procedures with the prefix sp_, SQL Server will search for and user a procedure in the master database before the current one. This does not appear to be the case with a SQLCLR stored ...
0
votes
1answer
2k views

Partitioning not working need primary key?

We are trying some partitioning as below. ALTER TABLE tblreceipt PARTITION BY RANGE (MONTH(receiptDate)) ( PARTITION p1 VALUES LESS THAN (TO_DAYS('2012-10-20')), PARTITION p2 VALUES LESS THAN ...
5
votes
3answers
3k views

Disabling logging on certain tables

I'm using SQL Server 2005. I have two tables that contain aggregate information. The information is constantly being updated, generating almost 5GB of log data a day. (That's larger than the entire ...

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