MySqlConnection cannot be cast to [B]MySQL.Data.MySqlClient.MySqlConnection. [C#] How to make the Console Process delay [C#] Oracle.DataAccess issue - Unhandled exception of type System.TypeInitializationException occured in mscorlib.dll [C#] Regex - Best Validation of Domain? [C#] Upload ...
“Unable to enlist in the transaction” with Oracle linked server from MS SQL Server [<Name of Missing Index, sysname,>] in non clustered index [Execute SQL Task] Error: The value type (__ComObject) can only be converted to variables of type Object. [ODBC Driver Manager] Data source nam...
EXISTS is a type of condition in Oracle database which can be defined as a condition or operator that is used with a sub query ( inner query or nested query is a query within another SQL query ) and upon execution of the sub query, if the sub query returns at least one row then th...
It is easy to manipulate most devices on a Unix system because the kernel presents many of the device I/O interfaces to user processes as files. These device files are sometimes called device nodes. Not only can a programmer use regular file operations to work with a device, but some devic...
I am currently migrating my asp.net project to asp.net core as per my clients requirement and I am stuck with a specific part for which i will need your help of. I am using the following piece of code to retrieve the SQL to the DTO on the BLL. result.data = _dbContext.Databas...
To execute the query, we use the functionExecuteReader(), which returns aResultsetcontaining the data acquired in the query. ThisResultSetcan be read using theSqlDataReaderobject, which reads the data in the loop row by row. In the end, we need to close the reader and connection objects ...
But this is invalid syntax in Oracle Database! In this post we'll see how you can emulate this functionality. We'll cover: Polymorphic Table Functions (PTFs) SQL macros Comparing PTFs and macros Summary Usingselect *is bad practice. It makes your codemore brittle to changesand canmake your...
Don't have a My Oracle Support account? Click to get started!In this DocumentGoalSolutionA single query is on CPU but does not finish in a desired timescale, so appears to be hung to the userA single query is on CPU in a loop/spin and will never finishThe...
Once we fetch data from SQL table for every row (LOB data type in the row) we need to create an Azure storage blob object, so we need to loop it through for all the records that are fetched. Under “Select an output from previous steps”, ...
SQL Server: Geometry Oracle: ST_Geometry SDO_Geometry In a SQL Server application, create a cursor or loop to iterate through the input database table. Create a geometry for each row. Note:This procedure works best if a unique identifier column exists in the input database table, such as ...