Issue – Where Replication Agents job Locate Resolution – While troubleshooting replication issue; it’s always good to know which server have which job. In transnational replication scenario. Snapshot agent Log Reader agent Distribution agent If Publisher and Distribution Server is same and you have configured Push subscription; all the job reside Publisher\Distributor server. If Publisher and… Read More Replication – Agents Job Location
Issue – Replication Monitor could not open the Detail Window. Cause – When you have SQL 2012 as a Publisher and distribution as SQL 2014 and when you try to launch replication monitor through SQL 2014; you will get this error message. Resolution – Launch replication monitor through SQL 2012 i.e. Publisher
Issue – Replication Log Reader agent was failing with below error messages. 2018-04-24 19:33:07.854 Status: 32768, code: 53044, text: ‘Validating publisher’. 2018-04-24 19:33:07.873 Status: 4096, code: 20024, text: ‘Initializing’. 2018-04-24 19:33:07.873 The agent is running. Use Replication Monitor to view the details of this agent session. 2018-04-24 19:33:07.879 Status: 0, code: 20011, text: ‘The process… Read More Replication Issue – Cannot execute as the database principal because the principal “dbo” does not exist, this type of principal cannot be impersonated, or you do not have permission.
Issue – My BI developer informed me; They are no longer able to connect oracle data sources they have created in their cube. Troubleshooting – As I am aware; In order to connect to Oracle; you should have oracle client installed properly. As it was working earlier hence my first impression was; they definitely have… Read More Issues related to Oracle Client in SQL Server.
Issue – How to create ODBC connection from text file. Resolution – Step 1 – Create the text file and ensure extension is enabled. Step 2 – If you don’t know how to enable extension. select your file ( in my case odbc ) and click on view on Top Navigation bar and select File name… Read More How to create ODBC connection from text file.
Issue – How to read\write different file format in HDFS by using pyspark File Format Action Procedure example without compression text File Read sc.textFile() orders = sc.textFile(“/user/BDD/navnit/data-master/retail_db/orders”) Write rdd.saveAsTextFile() orders.saveAsTextFile(“/user/BDD/navnit/saveTextFile/orders”) sequence File Read sc.sequenceFile(ordersSF = sc.sequenceFile(‘/user/BDD/navnit/saveSequenceFile/orders’) Write PipelinedRDD.saveAsSequenceFile() ordersKV.saveAsSequenceFile(‘/user/BDD/navnit/saveSequenceFile/orders’) Avro file Read sqlContext.read.format(“com.databricks.spark.avro”).load() orders = sqlContext.read.format(“com.databricks.spark.avro”).load(“/home/BDD/navnit/orders/”) Write dataFram.write.format(“com.databricks.spark.avro”).save() orders.write.format(“com.databricks.spark.avro”).save(“/user/BDD/navnit/saveAvroFile/orders”) Parquet File Read sqlContext.read.parquet() ordersParquet =… Read More Reading\Writing Different file format in HDFS by using pyspark
Issue – Customer was getting below error when he was running any query. Msg 468, Level 16, State 9, Line 36 Cannot resolve the collation conflict between “SQL_Latin1_General_CP1_CI_AS” and “SQL_Latin1_General_CP1_CS_AS” in the equal to operation. Back ground – Table was part of replication and when he was running query on subscribe he was getting collation conflict… Read More Cannot resolve the collation conflict between “xxx” and “xxx” in the equal to operation
Issue – How to export .dtsx file from SSISDB as from SQL 2012 onward you will not see .dtsx package listed in integration services. Note – This is shortcut solution. Step 1: – Go to Integration Services Catalogs à Project Step 2: – Right click on Project à Export Step 3: – Save project file… Read More How to export SSIS package ( dtsx file) from SSISDB
Requirement – If you are planning to migrate your In House SQL Server to Amazon Cloud and wondering which option will be best for you b/w AMAZON RDS and SQL Server on EC2. Here, I have created comparison table based on AWS whitepaper and documents. Feature comparison :- Features RDS SQL on EC2 Contol AWS In house… Read More Comparison between AMAZON RDS and SQL Server on EC2
Issue – Login failed for user ‘xxx’. Reason: Server is in single user mode. Only one administrator can connect at this time. Cause – Ensure SQL Server is not running in Single user mode by checking start-up parameter. if you see -m; it mean your SQL is running with single user mode. -m : Starts an… Read More Login failed for user ‘xxx’. Reason: Server is in single user mode. Only one administrator can connect at this time.
Issue – The target database, ‘xxx’, is participating in an availability group and is currently not accessible for queries. Either data movement is suspended or the availability replica is not enabled for read access. To allow read-only access to this and other databases in the availability group, enable read access to one or more secondary… Read More The target database, ‘xxx’, is participating in an availability group and is currently not accessible for queries.
Today, I was working on demo where I wanted to have test dataset for Retail db and after some googing I found MS has it’s own database and here are details – The Contoso BI Demo dataset is used to demonstrate DW/BI functionalities across the entire Microsoft Office product family. This dataset includes C-level, sales/marketing,… Read More Microsoft Contoso BI Demo Dataset for Retail Industry
Yesterday, one of my client send me email stating she is not able to run any query against database. she was getting below error message – The transaction log for database ‘xxx’ is full due to ‘LOG_BACKUP’ From error message it’s look like transaction log full issue hence I looked for db property and found… Read More The transaction log for database ‘XXX’ is full due to ‘LOG_BACKUP’
This is really awesome feature launched my Microsoft in SQL Server 2017 (vNext ) source – Microsoft Cloud Platform