dbi

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Catching errors with DBD::Informix

I need to run dynamically constructed queries against Informix IDS 9.x; while WHERE clause is mostly quite simple, Projection clause can be quite complicated with lots of columns and formulas applied[详细]

2023-03-29 01:32 分类：问答
How to pass a hash to a sub?

In my perl \"script\" I\'m collecting data and building a hashmap. The hashmap keys represent field names, and the values represent the value I want to insert into the corresponding field.[详细]

2023-03-28 00:16 分类：问答
Mssql/Perl DBI performance woes

Im writing an application that does a lot of large inserts to a remote mssql server with Perl DBI.Not sure if it will be 05 or 08 sql server yet, but I\'ve timed it in both so far and performance is s[详细]

2023-03-27 02:58 分类：问答
How do I get the number of affected rows when I use DBI's prepare/execute for non-select statement?

According to the DBI documentation, it seems I can only get the number of affected rows by the do method.[详细]

2023-03-25 17:47 分类：问答
Is there a more elegant way of calculating the median of a group of numbers using ruby-dbi and connection to a database

I have the following code which calculates the median of a group of numbers drawn from a database. The question relates to if there is an easier way for calculating the median of a column from a array[详细]

2023-03-25 04:44 分类：问答
DBD:SQLite disconnect

I wrote the below code: $dbh = DBI->connect(\'dbi:SQLite:mysqlite.db\', \"\", \"\") || die \"Cannot connect: $DBI::errstr\";[详细]

2023-03-22 16:24 分类：问答
Connect and modify SQL server from Selenium using Ruby (no Rails)

I guess Selenium isn\'t that important to this question but I thought I\'d add it in. Also, I\'m not using 开发者_如何学PythonRails.[详细]

2023-03-21 20:22 分类：问答
RaiseError (PERL, DBI) equivalent for unixODBC C API?

I have a problem executing some stored procedures/functions in INFORMIX DB. I tried with different clients and they were all the same - no one detects errors on executing, instead of this - return emp[详细]

2023-03-20 12:27 分类：问答
How do i connect Perl with an Excel file (*.xlsx or *.xls) using ODBC?

I have been asked to look into using ODBC as a database driver to be able to use SQL on an Excel workbook. I have seen a number of people using OLE as a driver, but the only ODBC开发者_Python百科 walk[详细]

2023-03-20 01:10 分类：问答
DBI_QUERY replacement in twiki for HTTP

I am currently replacing some functionality in a twiki page that has been pulling data from a DB using the DBI_QUERY feature and generating a table complete with hyperlinks on one of the table columns[详细]

2023-03-18 17:31 分类：问答