What is Linesize?
The LINESIZE setting controls the number of characters SQL*Plus prints on one physical line. The default setting is 80 (150 in iSQL*Plus). The maximum width is system-dependent, though it’s often 32,767 characters.
What is Longchunksize?
LONGCHUNKSIZE is a system variable that: determines the default column width of a LONG, CLOB, NCLOB or XMLType defaults along with the system variable LONG and lines (linesize). Sets the size (in bytes) of the increments in which SQL*Plus retrieves a LONG, CLOB, NCLOB or XMLType value.
What is set verify off in Oracle?
Synopsis. The VERIFY setting controls whether or not SQL*Plus displays before and after images of each line that contains a substitution variable.
What are the different in trigger?
A trigger has three basic parts: A triggering event or statement. A trigger restriction. A trigger action.
What is echo in SQL?
The ECHO setting tells SQL*Plus whether you want the contents of script files to be echoed to the screen as they are executed.
What is maximum line size?
Longer lines (85–90 cpl) may be acceptable for discontinuous text such as in bibliographies or footnotes, but for continuous text lines with more than 80 characters may be too long. Short text, such as ragged marginal notes, may be as little as 12–15 characters per line.
What is set Trimspool on?
SET TRIMOUT ON or SET TRIMSPOOL ON removes trailing blanks at the end of each displayed or spooled line. Setting these variables ON can reduce the amount of data written. However, if LINESIZE is optimal, it may be faster to set the variables OFF.
What does the pagesize setting do in SQL?
The PAGESIZE setting tells SQL*Plus the number of printed lines that will fit on one page of output. You can also use this setting to completely turn off all pagination functions. Is the command, which may be abbreviated SET PAGES. Is the number of lines you want SQL*Plus to print on one page.
What should the PAGESIZE be on a page?
This includes detail lines, header lines, and footer lines. The default value for PAGESIZE is 14 (24 in i SQL*Plus). The PAGESIZE must be set in conjunction with NEWPAGE. The sum of PAGESIZE and NEWPAGE should equal the number of lines that will physically fit on one page.
How to set the number of lines on a page?
SET PAGES[IZE] Is the command, which may be abbreviated SET PAGES. lines_on_page. Is the number of lines you want SQL*Plus to print on one page. This includes detail lines, header lines, and footer lines. The default value for PAGESIZE is 14 (24 in i SQL*Plus).
How does linesize affect the execution time of SQL?
The LINESIZE has no impact on the time it takes to execute your SQL. But it does affect how long it takes SQL*Plus to render the results. If you measure the SQL execution time in your database (e.g. with the monitor hint), you should find that the database time for all tests is about the same and fairly trivial – in the order of milliseconds.