Data.dll but was not handled in user code Additional information: There is no row at position 0. An exception of type 'System.InvalidOperationException' occurred in EntityFramework.dll but was not handled in user codeAn exception of type 'System.InvalidOperationException' occurred in Entity...
What is Azure Database for PostgreSQL?Choose the right PostgreSQL server option in Azure Training Introduction to Azure Database for PostgreSQL training guide Building scalable applications with Azure Database for PostgreSQL will help your business get the most out of your database. Learn how to qui...
Challenges Faced by Data Practitioners About Data Types in SQL Server When you create a table or add a column to a table in SQL Server, you must specify the data type for each column. By specifying this, you can ensure that only the appropriate data type is stored in the column, enhanci...
For more information, see What is PolyBase?.SQL Server 2019 (15.x) Cumulative update 19 now introduces support for Oracle TNS files. Please refer to CREATE EXTERNAL DATA SOURCE for more information and samples.For more information, see What are SQL Server Big Data Clusters?....
A database thus created uses the default MySQL Server database properties (such as those as determined by character_set_database and collation_database) that are in effect on this SQL node at the time the statement is executed. NDB metadata change detection and synchronization. NDB 8.0 ...
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First-class support for Unicode 9.0 out of the box. Window functions and recursive SQL syntax, for queries that previously weren’t possible or would have been difficult to write. Expanded support for native JSON data and document-store functionality. With version 8.0, MySQL is jumping several ...
MySQL Server works in client/server or embedded systems. The MySQL Database Software is a client/server system that consists of a multithreaded SQL server that supports different back ends, several different client programs and libraries, administrative tools, and a wide range of application programmi...
New Features in PL/SQL for Oracle Database 10g Release 1 (10.1) Improved Performance PL/SQL performance is improved across the board. Most improvements are automatic, with no action required from you. Global optimization of PL/SQL code is controlled by thePLSQL_OPTIMIZE_LEVELinitialization paramet...
PostgreSQL allows for the most common data types, including SQL 2008, and it supports Unicode, international character sets, and multibyte character encodings. PostgreSQL is an open-source license Because PostgreSQL is accessible as an open-source license, your users are empowered to be more ...