RE: Need help with oracledump (contributed program)
A TNSNAMES file isn't going to help unless you have the Oracle client software installed. If you had the software, you would already have a tnsnames file. -Original Message- From: Doug Poland [mailto:[EMAIL PROTECTED] Sent: 02 September 2003 02:58 To: Martin Gainty Cc: [EMAIL PROTECTED] Subject: Re: Need help with oracledump (contributed program) On Mon, Sep 01, 2003 at 11:09:02AM -0700, Martin Gainty wrote: Doug I copied this from an SAP integration with Orace site http://saphelp.cob.csuchico.edu/OraHelp/Darwin36/inst36fhp/htm l/5-odbc.htm 5.5.3 tsnames.ora File the file ORACLE_HOME/network/admin/tnsnames.ora must point to the listener (i.e., the TCP/IP port) on the database server. (ORACLE_HOME is the directory on Unix where Oracle is installed.) For example, ora_db0_net= (DESCRIPTION= (ADDRESS= (PROTOCOL=TCP) (HOST=test-console.think.com) (PORT=1521) ) (CONNECT_DATA= (SID=ORCL) ) ) Note: Do not use tabs in the file tnsnames.ora. *OracleDump is performed by (SID=ORCL)* Keep us apprised to your progress... Hi Marty, Thanks for following up. I've created a tnsnames.ora file in /usr/local/oracle/9.0.1/network/admin with the settings appropriate to my host. When I run the following commands: % setenv ORACLE_HOME /usr/local/oracle/9.0.1 % setenv ORACLE_SID VAPDEV % oracledump -c -u myUser -p myPassword I get the error message... % Can't call method do on an undefined value at /home/doug/bin/oracledump line 95. When I run it with the -x switch I see... Configuration: (remove --explain/-x option to run with this configuration) Database SID: VAPDEV Database user: myUser Database password: myPassword Tables: All tables Options: --default-databaseUse default database (VAPDEV) --with-table-comments Include table comments --with-column-commentsInclude column comments --default-precision Set to 18 --default-scale Set to 0 --complete-insert Includes list of column names in insert statements I'm not a perl guy and I'm not sure what to make of it other than the variables $nls_date_format, $nls_time_format, $nls_timestamp_format have data at run-time. Thanks again for your help so far... -- Regards, Doug Marty Gainty - Original Message - From: Doug Poland [EMAIL PROTECTED] To: Jim Smith [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Sent: Monday, September 01, 2003 6:18 AM Subject: Re: Need help with oracledump (contributed program) On Mon, Sep 01, 2003 at 01:03:48PM +0100, Jim Smith wrote: I'm trying to figure out how to use the contributed program oracledump in an environment where I don't have a login to the *nix host running Oracle. All my connectivity to the Oracle host is via port 1521 and JDBC. The oracle dump command seems to be looking for a SID in a file called tnsnames.ora. Those do not exist on the system I am using. Is it possible to still use oracledump in this case? I doubt it. It looks as if oracledump requires Oracle's network layer (SQL*Net) and unless you have that you can't do anything. The oracle thin JDBC driver implements SQL*Net for java only, but the other Oracle jdbc drivers require SQL*Net Thanks for the reply. Looks like I'll have to roll my own in Java. -- Regards, Doug -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: Need help with oracledump (contributed program)
I'm trying to figure out how to use the contributed program oracledump in an environment where I don't have a login to the *nix host running Oracle. All my connectivity to the Oracle host is via port 1521 and JDBC. The oracle dump command seems to be looking for a SID in a file called tnsnames.ora. Those do not exist on the system I am using. Is it possible to still use oracledump in this case? I doubt it. It looks as if oracledump requires Oracle's network layer (SQL*Net) and unless you have that you can't do anything. The oracle thin JDBC driver implements SQL*Net for java only, but the other Oracle jdbc drivers require SQL*Net -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: Problem Query - Help Please
When I execute the following query I get duplicate product_id's as shown below: SELECT * FROM product, product_category_xref, category WHERE product_parent_id='' AND product.product_id=product_category_xref.product_id AND category.category_id=product_category_xref.category_id AND product.product_publish='Y' AND product.product_special='Y' ORDER BY product_name DESC\G Results ( As you can see product_id 4139 occurs twice and I desire the product_id's to be unique in this query) I have also included the descriptions of the tables. I would appreciate someone assisting me with a query that works correctly. Product 2139 has two different categories BOOKS and EDUCATION and therefore appears twice. category_id: 7920cfab5c630ca88ceabcfda6b3848d product_id: 4139 product_list: NULL category_id: 7920cfab5c630ca88ceabcfda6b3848d vendor_id: 1 category_name: BOOKS category_id: 4ee8c8513ee84c95c8eb7f24e63d7222 product_id: 4139 product_list: NULL category_id: 4ee8c8513ee84c95c8eb7f24e63d7222 vendor_id: 1 category_name: EDUCATION If you need to show all the categories you will probably need to retrieve thos separately and build a list programatically to give something like categories: EDUCATION, BOOKS -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: INSERT .... SELECT
Then you need to be even more explicit INSERT INTO nye_opskrifter (foo,bar) SELECT foo, bar FROM opskrifter where id in($numbers) -Original Message- From: Lars Rasmussen [mailto:[EMAIL PROTECTED] Sent: 13 August 2003 19:22 To: 'Jay Blanchard'; [EMAIL PROTECTED] Subject: INSERT SELECT I tried that, but i dont work either. I need to insert a way that mysql doese'nt complain when i copy some records that have the same id (or that it just gives it an id according to the AUTO_INCREMENT) Thanks again //Lars Rasmussen -Oprindelig meddelelse- Fra: Jay Blanchard [mailto:[EMAIL PROTECTED] Sendt: 13. august 2003 19:59 Til: Lars Rasmussen; [EMAIL PROTECTED] Emne: RE: INSERT SELECT [snip] I used this command: INSERT INTO nye_opskrifter SELECT * FROM opskrifter where id in($numbers) But now it gives this error: Column count doesn't match value count at row 1 [/snip] * does not return a specific number of columns, the work around is to specify the columns explicitly INSERT INTO nye_opskrifter SELECT foo, bar FROM opskrifter where id in($numbers) -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: CREATE TABLE, INSERT INTO with SELECT in parentheses
But why do you need the parentheses? What is wrong with CREATE TABLE Foo2 SELECT * FROM sensei WHERE last_name IN (SELECT last_name FROM sensei UNION ALL select last_name FROM sensei) ORDER BY e_mail; -Original Message- From: James Fryer [mailto:[EMAIL PROTECTED] Sent: 14 August 2003 09:41 To: [EMAIL PROTECTED] Subject: Re: CREATE TABLE, INSERT INTO with SELECT in parentheses At 09:22 am 14/08/03, Nils Valentin wrote: I don' t understand your question. Why do you hink you that the brackets would't work ? I tried that without any problems. Please post your code. Here is mine: SELECT * FROM sensei WHERE last_name IN (SELECT last_name FROM sensei UNION ALL select last_name FROM sensei) ORDER BY e_mail; Here's some code that demonstrates what I mean: -- Cut Here -- CREATE DATABASE Foobar; USE Foobar; CREATE TABLE Bar (id int(10) unsigned); # Works SELECT * FROM Bar; # Works CREATE TABLE Foo1 SELECT * FROM Bar; # Works (SELECT * FROM Bar); # Fails (syntax error) CREATE TABLE Foo2 (SELECT * FROM Bar); DROP DATABASE Foobar; -- Cut Here -- Using MacOS so please forgive any errors due to case-sensitivity. Jim -- James Fryer / [EMAIL PROTECTED] / [EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: Joins and Unions
Adtrack - holds data about an ads status (but NOT page number) Dummy - holds data about ad position, geometry and page number Stories - holds data about stories and their page number Pages - holds data about pages and their status I want to be able to display a page and all its associated pieces but without duplicates. I know a union would display what I want, but I can't get all the necessary data without doing a join. The current query is: SELECT dummy.page_number,dummy.ad_num,adtrack.ad_status,stories.story _name,stories. story_status FROM adtrack,dummy,stories WHERE adtrack.ad_num = dummy.ad_num AND dummy.page_number = stories.page_number order by dummy.page_number ASC What about this? SELECT dummy.page_number,stories.story_name,stories.story_status FROM dummy,stories WHERE dummy.page_number = stories.page_number UNION SELECT dummy.page_number,dummy.ad_num,adtrack.ad_status FROM adtrack,dummy WHERE adtrack.ad_num = dummy.ad_num order by 1 ASC -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: CREATE TABLE, INSERT INTO with SELECT in parentheses
Are you saying that any query containing parentheses fails? In that case sub selects won't work either. -Original Message- From: James Fryer [mailto:[EMAIL PROTECTED] Sent: 14 August 2003 10:07 To: [EMAIL PROTECTED] Subject: RE: CREATE TABLE, INSERT INTO with SELECT in parentheses At 09:47 am 14/08/03, Jim Smith wrote: But why do you need the parentheses? This was a simplified query for example purposes. The real query looks more like (SELECT ...) UNION (SELECT ...) ORDER BY ... I repeat. Why do you need the parentheses? Union queries don't require them. I could rewrite this with subselects but I have found them to be slower. My question is, why do the parentheses cause a syntax error and is this a bug? Jim -- James Fryer / [EMAIL PROTECTED] / [EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: CREATE TABLE, INSERT INTO with SELECT in parentheses
Sorry, missed this. They do need them if you want to use ORDER BY on the result of the UNION. Only if you are also ordering the component parts of the union. This works create table y select * from x union select * from x order by 1 desc but this doesn't create table y select * from x order by a union select * from x order by a order by 1 desc This strikes me as a peculiar thing to want to do. Is it ANSI compliant? -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: Re: MySQL field data type for ISBN numbers
-Original Message- From: Tomasz Korycki [mailto:[EMAIL PROTECTED] Sent: 11 August 2003 05:26 To: [EMAIL PROTECTED] Subject: OT: Re: MySQL field data type for ISBN numbers At 21:08 2003-08-10, you wrote: On Sun, Aug 10, 2003 at 05:25:05PM -0700, James Johnson wrote: I have a MySQL database for books. The ISBN field is set as varchar(15) and I've put a test ISBN number in of 1--111-11. Note that ISBN numbers are a maximum of 13 characters, not 15. Ten digits, three dashes. If you really want to save space, the last digit is just a check digit and can always be determined through a formula on the other digits, so as long as you verify every ISBN before you INSERT it, you can save another digit. Hmmm...And how do You come up with an 'X' as the last digit, as many books on the shelves around me do? I don't know which particular check digit algorithm is used for ISBNs but the mod-11 algorithm uses the digits 0-9 and X for 10. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: Help with count(*)
what ever happend to a unique primary key like userID ? User is not the primary key. This is a logging table so the primary key is likely to be a timestamp of some sort. Read the question. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: standardized naming system ?
Hello list, is there a common naming system for db objects ? Thousands. Like: 1) Tables: mytable, tblmytable, tbl_mytable 2) Indices: idx_anindex 3) Columns: int_somenumber, date_lastupdate 4) id for the numerical primary key e.g. table customers.id and then for referencing foreign keys table addresses : addresses.customer_id or addresses.customer_fk OK, I know I could name them the way I want but perhaps there is some kind of common sense in this regard ? Common sense will do, but here is my take on it. There are three main objectives - portability, maintainability and consistency. General. Use long names. Don't abbreviate unnecessarily, but don't go to far that you have to rename all your tables if you move to a different DBMS. A max of 30 chars should fit most DBMSs. Use lower case names, with words separated by underscores '_'. Some DBMSs are case sensitive, others aren't and some convert all names to upper case ( this is an ANSI standard feature, I believe). If you use camel case ( studentClassScores), this could become STUDENTCLASSSCORES which isn't very readable, whereas STUDENT_CLASS_SCORES is much better. Don't use reserved words. Most DBMSs allow you to use reserved words with various degrees of effort, but why bother. Also try to avoid simple names which might be a reserved word in another DBMS. Tables. Give tables a clear simple name which represents the content. If it holds student records, call it students; course details, courses etc. Also assign each table a unique 2-4 letter prefix for use in naming objects which belong to that table. Columns Again say what it is. I use the prefix referred to above in all column names, but some people think that is a waste of name space. e.g std_id, std_surname, std_forename, student_birthdate, crs_name, crs_tutor_id, etc Constraints Use the prefix Primary Key std_pk Foreign Keys std_fk_col ( i.e. source_prefix_FK_target_prefix Unique Keys std_uk_nnwhere nn is a sequence number. Some people like std_uk_column_name, but if you have a composite key, that doesn't work. Indexes Where an index is used to enforce (or instead of) a unique or primary key constraint, same name as the constraint. Primary Key index std_pk Unique Index std_uk_nn Non-unique indexstd_nu_nn If indexes share the same namespace as constraints, stick an i_ on the front of the index name. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: RE: standardized naming system ?
Wasn't my question. Why do you need to label a table as a table? There is some merit in using type prefixes in VB because of its loose typing, but it makes no sense in a database context where the types of objects are quite distinct. -Original Message- From: Adam Fortuno KOVICK [mailto:[EMAIL PROTECTED] Sent: 01 August 2003 15:24 To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Re: RE: standardized naming system ? Jim, Great question! I use the ol'Reddick VBA naming conventions. tbl - table idx - index fld - field You can search them in google, but I'd like to know if MySQL has its own established conventions too. Regards, A$ - Original Message - From: Jim Smith [EMAIL PROTECTED] Date: Friday, August 1, 2003 10:03 am Subject: RE: standardized naming system ? Hello list, is there a common naming system for db objects ? Thousands. Like: 1) Tables: mytable, tblmytable, tbl_mytable 2) Indices: idx_anindex 3) Columns: int_somenumber, date_lastupdate 4) id for the numerical primary key e.g. table customers.id and then for referencing foreign keys table addresses : addresses.customer_id or addresses.customer_fk OK, I know I could name them the way I want but perhaps there is some kind of common sense in this regard ? Common sense will do, but here is my take on it. There are three main objectives - portability, maintainability and consistency. General. Use long names. Don't abbreviate unnecessarily, but don't go to far that you have to rename all your tables if you move to a different DBMS. A max of 30 chars should fit most DBMSs. Use lower case names, with words separated by underscores '_'. Some DBMSs are case sensitive, others aren't and some convert all names to upper case ( this is an ANSI standard feature, I believe). If you use camel case ( studentClassScores),this could become STUDENTCLASSSCORES which isn't very readable, whereas STUDENT_CLASS_SCORESis much better. Don't use reserved words. Most DBMSs allow you to use reserved words with various degrees of effort, but why bother. Also try to avoid simple names which might be a reserved word in another DBMS. Tables. Give tables a clear simple name which represents the content. If it holds student records, call it students; course details, courses etc. Also assign each table a unique 2-4 letter prefix for use in naming objects which belong to that table. Columns Again say what it is. I use the prefix referred to above in all columnnames, but some people think that is a waste of name space. e.g std_id, std_surname, std_forename, student_birthdate, crs_name, crs_tutor_id, etc Constraints Use the prefix Primary Key std_pk Foreign Keys std_fk_col ( i.e. source_prefix_FK_target_prefix Unique Keys std_uk_nnwhere nn is a sequence number. Some people like std_uk_column_name, but if you have a composite key, that doesn't work. Indexes Where an index is used to enforce (or instead of) a unique or primary key constraint, same name as the constraint. Primary Key index std_pk Unique Index std_uk_nn Non-unique indexstd_nu_nn If indexes share the same namespace as constraints, stick an i_ on the front of the index name. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: Advice wanted on Data Structure
-Original Message- From: Donald Tyler [mailto:[EMAIL PROTECTED] Sent: 30 July 2003 16:42 To: [EMAIL PROTECTED] Subject: Advice wanted on Data Structure I have a question that I hope I can explain well enough: I am trying to figure out a data structure for an inventory system. The system contains: Items Kits(Made from a collection of Items and/or other Kits) Now my question is: Is there any way to structure this in a database so that I could run a single query to get the contents of a kit, even though it contains other kits? My problems occur when I try to create the tables as so: ITEMS:KIT_CONTENTSKITS KIT_IDKIT_ID ITEM_ID-ITEM_ID Description Description Price Etc This is a classic problem known as a Bill of Materials explosion and unfortunately relational databases don't handle it very well. Storage is easy(ish). Fundamentally you have a recursive many to many relationship between components, resolved as Component: Component_Link id ---|---assembly_id name|---subcomponent_id That is 2 foreign keys back to the same master table, if the diagram isn't clear. In OO terms, both item and kit are subclasses of component. There are may ways to implement that in a relation database, but the simplest is to store them as a single table with a type field. Retrieval is harder. To get the contents of an assembly (kit), select * from component as assembly, component as subcomponent, component_link where assembly.name=? and component_link.assembly_id=assembly_id and subcomponent.id= componentLink.subcomponent_id BUT, this only goes down to one level which may be enough for most purposes, but for stock monitoring (e.g. I've sold 10 of kit ZZA102, what effect does that have on my item stocks), you need to do it recursively. With mysql ( and most other DBMS) the only alternative is to do the recursion in a program - ie get all first level children foreach get next level foreach get next level etc Oracle has an excellent CONNECT BY extension to standard sql which does this brilliantly, and I believe mysql AB are planning to imlpement it sometime. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: WHERE x IN (SELECT x ...
If this is the case, is there a crude workaround method of attempting to perform the following until such a time as it is? SELECT COUNT(*) FROM messages WHERE forum_id IN (SELECT forum_id FROM forums WHERE team_no = 400) select count(message_id) -- assuming you have a non-null id column from messages m inner join forums f on m.forum_id=f.forun_id where team_id=400 This will give the wrong result if a message can appear in more than one forum. In that case use count distinct(message_id) -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: Index Field
Just a quick question on whether I need both fields to be indexed. The table is as below.. I'm wondering if I need to have these 2 fields - fa_id serial_no fa_id would be a 7 character int like 001, 002 serial_no would be like WMACK001, WMACM121 most of the time, we'll be referencing the serial_no more as it's what's being used most often in my nature of work. Initially I thought that I could index or make serial_no my primary key but as it's not fully numeric, I'm not sure if this is advisable. There is nothing wrong with a non-numeric primary key. A string search/comparison might be marginally slower than a numeric search but there shouldn't be much difference. Depending on the size of you database, there may be storage implications if you need to have the serial_no as a foreign key in lots of places. Can anyone help me out? Do I need the fa_id field? If I were to use mysql to query for data, most likely I'll be using the Serial_no as the reference and not fa_id. I would say you don't need it. Some people like to put a surrogate key on everything, but if you have a natural key why not use it. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: mysql setup compared to oracle
I'm fairly new to mysql myself, but I'll have a go. The mysql manual is at http://www.mysql.com/doc/. I've only dipped into it, but it seems to be pretty good. Questions: 1. is mysql simular organized as oracle: instance/users/tables, so that I have to connect to chossen instance and user? Yes and no. mysql is more like Sybase/MS SQL server where you have a single instance and multiple databases. An instance is called a server and is represented by the mysqld process. 2. does mysql also use the term tablespace and can it administrated in the same way? No and yes. The default table storage structure is 'MyIsam' where each table is represented by a separate file (actually several files for data and indexes). There is a a new alternative storage structure 'InnoDB' which is more like tablespaces. I know nothing about it. http://www.mysql.com/doc/en/InnoDB_overview.html 3. when creating a mysql database, how to determine where the datafiles are located? The data directory is specified in my.cnf and all data files are created there. As far as I know mysql doesn't support fine grained control of storage the way Oracle does. There may be more control with InnoDB 4. is there something like a init.ora? Yes. It is my.cnf There is a global file in /etc which is installation wide and server(instance) specific optios in DATADIR/my.cnf. See http://www.mysql.com/doc/en/Option_files.html 5. is it possible to start several databases from the same installation? Yes. Although this is the wrong question really. You can have several servers (instances) and each server can have several databases. 6. is there something like ORACLE_HOME and ORACLE_SID? Not sure. There are MYSQL_UNIX_PORT (for local connections) AND MYSQL_TCP_PORT ( remote connections) which are sort of equivalent to ORACLE_SID. Hope you can give me details prepared for a newbie and point me to the suitable commands or docs. Thanks in advance Harald -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: mysql setup compared to oracle
1. No, especially not MyISAM. In MyISAM, a database (you can compare that to instance) is just a directory on disk. Every table in this DB (instance) again is file (well actually 3 files, one for data, one for metadata, one for index information). Actually the server is equivalent to an instance -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: derived tables
I don't Mysql very well, but I would be very surprised if that was supported, based on my experience with Oracle. You need to distinguish between data and database object names. You can use derived_tables to return data, but niot names. You can't do select * from 'table', because 'table' is a string, not an object name, your subquery is returning 'table'. You need to use dynamic sql for that sort of thing. -Original Message- From: Shawn McGinn [mailto:[EMAIL PROTECTED] Sent: 13 July 2003 18:02 To: [EMAIL PROTECTED] Subject: derived tables I would like to select data from a table where the table name is located in another table, and I am using the following query: select t1.* from (select tbl_name from user_table where user=guy) t1; This should return the data from table 'tbl_name', but I only get results from the subquery (ie. the query as a whole returns 'tbl_name', not it's contents) Where am I going wrong? I am using version 4.1.0-alpha-standard. Shawn -- Shawn McGinn [EMAIL PROTECTED] UNB -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: Extracting data from SQL Server *.DB file
I've read through the archives and spent hours on Google but I still can't figure this out. I must extract the data from a SQL Server *.DB file. Viewing the raw text, I can see that there views, grants, etc. at the top of the file, but this is a process that could not possible be done by hand. I've tried using Crystal Reports and SQLyog but they don't seem to work, either. As the end result is to convert this data for use in MySQL, I'm hoping that the fine folks on here may be able to help me. Thanks a lot. The only reasonable way to get data out of a SQL Server DB file is to use SQLServer. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: MySQL vs. PostgreSQL -- speed test
If maximum speed is critical. It's easy to lose sight of the fact that speed is not the only criterion in choosing a DBMS. Features, stability, security, and so on can be just as important or more so. No single DBMS is going to win all the prizes; the trick is to find the one with the right balance. I agree with your opinion in 100%, but in my case I need DBMS with features like subselectes/utf-8/stored procedures but the speed is also very important issue. You might have to spend money! -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
RE: MySQL vs. PostgreSQL -- speed test
I agree with your opinion in 100%, but in my case I need DBMS with features like subselectes/utf-8/stored procedures but the speed is also very important issue. You might have to spend money! You are saying that there is DBMS with all this features and it is as fast as MySQL ? I don't know, but if there is, it is one you will have to pay for. In any case, speed is as much a matter of application design as a DBMS characteristic. As a minor side issue, we did some _very limited_ testing with MS SQLServer 2000 using unicode v ascii queries. Using unicode, queries tended to run at about half the speed compare to using ascii. This was client server, so it is likely that the increased network traffic is to blame, but bear it it mind. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
