What is spool limit?
The hadr_spool_limit parameter determines the maximum amount of log data that is allowed to be spooled to disk on HADR standby.
What is spool issue?
Speed issues tend to happen due to an overworked processor, and a quick power cycle—shutting it down completely for 30 seconds—will “clear its head.” Other things that can slow down your devices include the following: Too many open applications. Too many open browser tabs.
How do you find unused stats in Teradata?
New DBQL logging options USECOUNT and STATSUSAGE, introduced in Teradata Database 14.10, enable the logging of used and missing statistics. The output of this logging can be utilized to find used, unused, and missing statistics globally (for all queries) or for just a subset of queries.
What is spool overflow?
Spool request that got generated are stored in a temporary sequential file called Temse. Please note that these are stored in Temse because these are not stored permanently. The size of the Temse is limited by the parameter definition.
Where are unused tables in Teradata?
Find unused tables in Teradata
- Select DatabaseName,TableName from dbc. tablesv.
- where DatabaseName = ‘Banking_prod_db’
- and LastAccessTimeStamp <= CURRENT_DATE -90;
What are Teradata statistics used for?
What is Collect stats in Teradata? Collect Stats is used to gather the statistics on various columns as per the requirement. Thereafter the Teradata’s optimizer creates an execution strategy that is based on these statistics collected by the COLLECT STATS command.
How do I find my spool request number?
- If you want to see the output requests for a spool request, double-click the status of the corresponding spool request in the list of spool requests.
- If you want to see the output requests for multiple spool requests, select the spool requests and choose Output Requests.
What is macro Teradata?
Advertisements. Macro is a set of SQL statements which are stored and executed by calling the Macro name. The definition of Macros is stored in Data Dictionary. Users only need EXEC privilege to execute the Macro.
What is an ATM?
ATMs are known in different parts of the world as automated bank machines (ABM) or cash machines. Automated teller machines (ATMs) are electronic banking outlets that allow people to complete transactions without going into a branch of their bank.
What does it mean to spool a computer document?
To spool (which stands for “simultaneous peripheral operations online”) a computer document or task list (or “job”) is to read it in and store it, usually on a hard disk or larger storage medium so that it can be printed or otherwise processed at a more convenient time (for example, when a printer is finished printing its current document).
What does spool full or spool overflow mean?
In the dump itself and in the syslog, the system issues the message “Spool full” or “Spool overflow”. In the standard SAP system, the number of spool requests that can be created is limited to 32000. If you reach this limit, there are no more free numbers and the errors described above occur. You can raise the upper limit for spool requests.
What is an automated teller machine (ATM)?
An automated teller machine (ATM) is an electronic banking outlet that allows customers to complete basic transactions without the aid of a branch representative or teller.