Create temp table in a for loop in php code#
The same code above both version ( with and with input parameter) works fine in version Version: 5.7. I believe this limitation applied to store procedure as well.Ĭalling the same store procedure with an binary input parameter where a user defined is used to convert a guid to binary fails with errorĬall p2(GuidToBinary('a077fa39-f54c-41b3-bcbe-4350ba390977')) Ĭreate function `guidtobinary`(guid varchar(36)) It may occur for temporary tables created outside stored functions and referred to across multiple calling and callee functions." "The Can't reopen table error also occurs if you refer to a temporary table multiple times in a stored function under different aliases, even if the references occur in different statements within the function. The above call to the store procedure succeeds even though I have used different alias for the temp table. If someone can help me understand would really appreciate Murugan Shanmugam I am seeing some wired behaviour with temporary tables in different version. This issue, which has been an issue for 3 years, is now causing performance issues without a suitable long-term workaround. I don't think this should be considered just a feature request. This will become a performance roadblock in the near future. I have to queue up executions of this stored procedure. which can be done by many users at the same time. I have to run it every time a node in the graph is moved. Keep up to 12MB in memory, if becomes bigger write to temp file file. This means I cannot run the stored procedure at the same time. FIELDS TERMINATED BY, OPTIONALLY ENCLOSED BY ESCAPED. This is where the can't reopen temp table issue hits. When I navigate to the child node I have to insert into the table that stores the node's properties while selecting from it to get which properties inherited to it. To do this very quickly it requires the use of a table to store the parent node's properties. It recurses over a directed cyclical graph where some properties from a parent node can inherit to the child node depending on their relationship. I have a very complex recursive stored procedure. This limitation is causing performance roadblocks in our application. It has been nearly 3 year since this was reported. Hopefully you dont need to adjust any timeouts and your sql is fast because cursors unfortunately are not, but I coded this one to be optimized and run as quick as possible with forward only.Jason Clawson I just want to bump this issue. Then you would call the mssql stored proc in koolreport in your setup.
Where cast(' + + ' as DATE) >= CAST(t0.from_dt as DATE) and cast(' + + ' as DATE) <= CAST(t0.to_dt as DATE) '') NEXT FROM into * from #tmp0 ,'' select t0.your, t1.fields from this_table t0 ,'Driver= Server=172.16.0.22 port=3306 Database=' + + ' User=your_user Password=your_password Option=3 '' I would like to convert this html table to a PHP table with for loop, the first row and column supposed to be empty. SET = CURSOR FAST_FORWARD FORWARD_ONLY FOR IF OBJECT_ID('tempdb.#tmp0') IS NOT NULL DROP TABLE #tmp0 default bounds for epoch time ( mysql timestamp datatype date = date = '' Then basically the same thing in your procedure. Sp_configure 'Ad Hoc Distributed Queries', 1
Create temp table in a for loop in php install#
install mysql odbc connector drivers ( version 5.1 64-bit in this example ) that match your sql server architectureĮnable ad-hoc distributed queries in the mssql instance.on the mssql server, install visual c++2010 runtimes if they are not already installed.That aside, here is what I think you are asking me: Also in my case it was only two servers and one database on each, so I did not require a cursor. I should take a step back and advise you do not use a linked server if possible and instead use openrowset in MSSQL for accessing a remote MySQL server because a linked server will gather all the results and filter them locally in tempdb, whereas with openrowset you can filter server side using the remote server rdbms syntax. SET = CONCAT('insert into temp_table_xyz (your, fields) SELECT your, fields FROM `', db_name,'`.`table_name`') WHERE SCHEMA_NAME NOT IN ('information_schema', 'performance_schema', 'mysql','sakila')ĭROP TEMPORARY TABLE IF EXISTS temp_table_xyz SELECT DISTINCT SCHEMA_NAME AS `database` DROP PROCEDURE IF EXISTS `report_db`.`getDbData` ĬREATE PROCEDURE `report_db`.`getDbData`( Instead I would leverage mysql to deal with that heavy lifting then use koolreport for the presentation layer. If its 50 databases in a single instance then I wouldnt use koolreport at all to join all your result sets. I think merging a multidimensional array from 50 different databases sounds like a nightmare. Depends on whether your databases are in the same instance or different instances in my humble opinion.
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