i have a micro sd card from an old phone from years ago. i put it in my computer an found a backup.sbf file on it. ive looked everywhere but i caot open it, it should have old pictures, contacts, call logs etc on it. Can someone point me in the right direction please? Let's block ads! بخوانید...
ادامه مطلبBooks online has says this to say about query optimisation in PolyBase: The query optimizer makes a cost-based decision to push computation to Hadoop when doing so will improve query performance. It uses statistics on exteal tables to make the cost-based decision. Pushing computation creates MapReduce jobs and leverages Hadoop's distributed computational resources. My question - how and when does the optimizer collect these statistics? Inside the SQL Server relational engine statistics can be created implicitly or explicitly, they age as writes occur, and can be refreshed explicitly or during table maintenance. Are there similar strategies employed in PolyBase? Given the data may be loaded...
ادامه مطلبI have two tables 1.Product table having columns prod_code alert_limit prod_description 2.Daily_data table having columns prod_code used_today date stock_left How should i join these two tables to get recent records of each product on the basis of date ? I have tried SELECT p.*, d.* FROM product p JOIN daily_data d ON (p.product_code = d.prod_code) LEFT OUTER JOIN daily_data d2 ON (p.product_code = d.prod_code AND (d.date < d2.date OR d.date = d2.date AND d.prod_code < d2.prod_code)) WHERE d2.prod_code IS NULL; but the above is giving me one recent row of the last product added Let's block ads! بخوانید...
ادامه مطلبThe operating system retued error 38(Reached the end of the file.) to SQL Server during a read at offset 0000000000000000 in file 'C:Program FilesMicrosoft SQL ServerMSSQL12.MSSQLSERVERMSSQLDATAbanking_sys_log.LDF'. Additional messages in the SQL Server error log and system event log may provide more detail. This is a severe system-level error condition that threatens database integrity and must be corrected immediately. Complete a full database consistency check (DBCC CHECKDB). This error can be caused by many factors; for more information, see SQL Server Books Online. (Microsoft SQL Server, Error: 823) Let's block ads! بخوانید...
ادامه مطلبI have a cube, called metric_cube, with a measure of Metric and a dimension Week with the given output on SSAS from SQL Server 2014. Current Output: Week Metric ---- ------ 1 6 2 5 3 4 4 3 5 2 I want to get the cube to output the sum of the Metric for all combinations of a from Week and to Week, where the from Week <= the to Week. Desired Output: Week(F) Week(T) Metric ------- ------- ------ 1 1 6 1 2 11 1 3 15 1 4 18 1 5 20 2 2 5 2 3 9 2 4 12 2 5 14 3 3 4 3 4 7 3...
ادامه مطلبI have six SQL Server 2014 servers. I am not using TDE, Transparent Data Encryption, on any server. I would like to be able to take an encrypted backup of a database on ANY server and restore that backup to ANY OTHER server. What actions do I need to take on each server with the service master key, master database key, and certificate? I would like to use the minimum number of keys, certificates, and backup files for these keys and certificates. What actions do I need to take if I add an additional SQL Server 2014 to the group? Thank you all. Server Fault and Stack Overflow have helped me many times in the past. Let's block ads! بخوانید...
ادامه مطلبSuppose I have two simple models, Sentences and Persons, where each Person is a reference to person mention in a Sentence. Let's say they have the following normalized schema: CREATE TABLE sentence (id INT, doc_id TEXT, text TEXT) CREATE TABLE person (id TEXT, sentence_id INT, name TEXT) Let's say that a significant fraction of all my queries filter persons on doc_id. When, if ever, should I denormalize my schema and replicate doc_id as a field in Person? CREATE TABLE sentence (id INT, doc_id TEXT, text TEXT) CREATE TABLE person (id TEXT, sentence_id INT, doc_id TEXT, name TEXT) If this case, would you recommend I use triggers or some other feature with postgres to ensure consistency? ...
ادامه مطلبI am getting an error: ORA-01691: unable to extend lob segment ABC.SYS_LOB0000167347C00131$$ by 1024 in tablespace XYZ But this is very strange to me because the tablespace has AUTOEXTEND on. What is the likely reason that this happens and how can I overcome it? Thanks. Let's block ads! بخوانید...
ادامه مطلبIn a simple MySQL replication Master-Slave configuration I have a problem where Master tries to coect to itself as a slave on reboot. So when I restart MySQL on Master, I see errors related to the same server trying to replicate to itself and I have to manually run mysql -e "STOP SLAVE;" every time I restart MySQL. How can I disable slave on master for good? Here's the relevant portion of my.cnf: ## Logging binlog_format = mixed log_bin = /var/log/mysql/mysql-bin.log sync_binlog = 1 pid_file = /var/run/mysqld/mysqld.pid log_error = /var/log/mysql/error.log #general_log ...
ادامه مطلبWhat I have currently done. I have created an Oracle Virtual box and install XP SP3. Install Oracle 9.0.1 on XP SP3. Restore my database on Oracle 9.0.1. Test database using SQL Plus tool. These above things work file. On my local Machine, I have already install visual studio 2015 community. And I am trying to coect Oracle database and I got the below error. Can you please help me how to sort out this issue: On the XP machine, I have a tnsnames.ora file. below is the content of that file. # TNSNAMES.ORA Network Configuration File: C:oracleora90networkadmintnsnames.ora # Generated by Oracle configuration tools. EXTPROC_CONNECTION_DATA = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS =...
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