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SQL Server Configuration Manager cannot connect to WMI

Sometime before I faced different kind of issue on one of staging SQL Server. I required to change the TCP port of an instance where multiple instance were running, I just open compmgmt.msc and connected SQLServer Configuration Manager , then I started receiving error : “ Cannot connect to WMI provider. You do not have permission or the server is unreachable. Note that you can only manage SQL Server 2005 and later servers with SQL Server Configuration Manager. Invalid class [0x80041010], SQL Server Cannot Connect to WMI Provider permissions or server is unreachable. ” This may caused by an issue with the compiled SQL Configuration Manager GUI’s communication with WMI. If we have multiple instance running on SQL Server on a single windows server or we have un-installed any instances then this kind of issues we may face to connect.

List all tables from MsAccess Database

After-a-long time I got chance to work on MS-Access. MS-Access is very intresting database-application development tool. I like ms access a lot  becouse, this is the tool that helped me to turn into database in 2009.  Microsoft Access is a popular database management system (DBMS) from Microsoft that combines the relational Microsoft Jet Database Engine with a graphical  user interface and software-development tools. Microsoft Access stores data in its own format based on the Access Jet Database Engine.  It can also import or link directly to data stored in other applications and databases. Now a days there are lots of changes in Access but basics are still the same.

An elephant moves into new room

Friends after a long time, I am writing a blog. I was away for last 3 months, due to one of the critical projects assigned to me from the client. Recently, we have moved a young elephant into a new and big room. Yes friends, elephant is a single Big-table of around 700+ GB data size and the room is of 5 TB storage with SQL Server 2014 version. Earlier, we had limited resources, older SQL version and huge data, which were altogether making system hell .

SQL Server Database Audit Queries

When we work with a single table in SQL Server, it is very easy to perform audit queries. But, while dealing with multiple tables of the same database, it becomes a very tedious job for new database developers. We need data from multiple sources(for example : all tables of a single database). As a newcomer to this field, i too got stuck in the same kind of queries, so, I have searched the web and have listed down a few queries that can help in retrieving data through audit queries. 

Event Automation in mysql

A MySQL event is a task that runs based on a predefined schedule therefore sometimes it is referred to as a scheduled event. MySQL event is also known as “temporal trigger” because it is triggered by time, not by table update like a trigger. A MySQL event is similar to a cron job in UNIX or a task scheduler in Windows. You can use MySQL events in many cases such as optimizing database tables, cleaning up logs, archiving data, or generate complex reports during off-peak time.

Usage of Float,Double and Decimal Data Types in MySql

When we start developing a database, we have to use the most appropriate data types for all the columns to store data values of the respective tables in it. For dealing with the floating type data values, most of the times, we get confused about which data type to go for, as we have Float, Decimal and Double as well. I, myself, as a new DBA, got confused about the usage of the same. So, i have re-searched through some websites over internet and have concluded some facts about these data types' usage. i want to share my experience with all of you.

What is Avro Schema

Avro schema generally used to define the data schema for a record's value. This schema describes the fields allowed in the value, along with their data types. We can apply a schema to the value portion of an Oracle NoSQL Database record using Avro bindings. These bindings are used to serialize values before writing them, and to deserialize values after reading them. The usage of these bindings requires our applications to use the Avro data format, which means that each stored value is associated with a schema. The use of Avro schemas allows serialized values to be stored in a very space-efficient binary format. Each value is stored without any metadata other than a small internal schema identifier, between 1 and 4 bytes in size. One such reference is stored per key-value pair. In this way, the serialized Avro data format is always associated with the schema used to serialize it, with minimal overhead. This association is made transparently to the application, and the internal sche