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notfoundthe notfound is the logical opposite of the found the notfound yields true when an insert update or delete statement affected no rows or the
isopenthe oracle closes the sql cursor automatically after executing its related sql statement as a result the isopen forever yields
founduntil the sql data manipulation statement is executed the found yields null afterward the found yields true when an insert update or delete
implicit cursor attributesthe implicit cursor attributes returns the information about the execution of an insert delete update or select into
rowcountwhen its cursor or cursor variable is opened the rowcount is zeroed before the first fetch the rowcount yields 0 afterward it yields the
notfoundthe notfound is logical opposite of the found the notfound yields false if the last fetch returned a row or true when the final fetch failed
isopenthe isopen yields true if its cursor or cursor variable is open or else the isopen yields false in the illustration you use the isopen to
foundsubsequent to a cursor or cursor variable is opened but before the first fetch the found yields null afterward it yields true when the last
explicit cursor attributesthe cursor variable or each cursor has four attributes found isopen rowcount and notfound when appended to the cursor or
closing a cursor variablethe close statement disables the cursor variable after that the related result set is undefined the syntax for the same is
fetching from a cursor variablethe fetch statement retrieve rows one at a time from the product set of a multi-row query the syntax for the same is
using a host variableyou can declare the cursor variable in the plsql host environment like an oci or pro c program to use the cursor variable you
opening a cursor variablethe open-for statement relates a cursor variable with the multi-row query executes the query and then identifies the result
controlling cursor variablesyou use 3 statements to control the cursor variable open-for fetch amp close at first you open a cursor variable for a
cursor variables as parametersyou can declare the cursor variables as the formal parameters of the functions and procedures in the illustration below
declaring cursor variablesonce a ref cursor type is define by you and then you can declare the cursor variables of that type in any plsql block or
defining ref cursor typesto make cursor variables you take 2 steps at first you define a ref cursor type and then declare the cursor variables of
why use cursor variables primarily you use the cursor variables to pass the query result sets between the plsql stored subprograms and different
what are cursor variables the cursor variables are like c or pascal pointers that hold the memory location address of some item rather of the item
packaging cursors you can split a cursor specification from its body for placement in a package in that way you can change the cursor body without
implicit cursorsthe oracle implicitly opens a cursor to process each sql statement not related with an explicitly declared cursor the plsql lets you
using subqueriesa subquery is a query typically enclosed by parentheses that appears within another sql data manipulation statement if evaluated the
closing a cursorthe close statements disable the cursor and the result set becomes undefined an illustration of the close statement as shownclose
fetching with a cursorthe fetch statements retrieve the rows in the result set one at a time after each and every fetch the cursor advance to the
passing cursor parametersyou use the open statement to pass the parameters to a cursor unless you want to accept the default values each proper