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 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 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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