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Parameter and Keyword Description:
dynamic_string:
This is a string variable, literal, or expression which represents a SQL statement or the PL/SQL block.
define_variable_name:
This identifies a variable which stores a SELECTED column value.
record_name:
This identifies a user-defined or %ROWTYPE record which stores a SELECTED row.
bind_argument_name:
These identify an expression whose value is passed to the PL/SQL block or dynamic SQL statement.
INTO ...:
This clause, useful only for specifies the variables record, or single-row queries into which the column values are fetched.
USING ...:
This clause specifies the list of bind arguments. If you do not specify the parameter mode, it default to IN. At run time, a few bind arguments in the USING clause substitute the corresponding placeholders in the PL/SQL block or SQL statement.
Fetching from a Cursor Variable The FETCH statement retrieve rows one at a time from the product set of a multi-row query. The syntax for the same is as shown: FETCH {curso
IN OUT Mode An IN OUT parameter passes initial values to the subprogram being called and return efficient values to the caller. Within the subprogram, an IN OUT parameter acts
Parameter Default Values As the illustration below shows, you can initialize the IN parameters to the default values. In that way, you can pass various numbers of actual par
Iteration Schemes The bounds of a loop range can be variables, literals, variables, or expressions but must compute to integers. Below are some of the examples. As you can see t
Conditionals - SQL At first sight SQL does not appear to have a single operator for expressing logical implication. In this respect it would be in common with most programming
Recursive Subprograms The recursive subprogram is the one that calls itself. Think of a recursive call as a call to a few other subprograms that does the similar task as your
Rollback Behavior When a FORALL statement fails, the database changes are rolled back to an implicit savepoint marked before each of the SQL statement execution. The Changes t
V ariables and Constants in PL/SQL The PL/SQL permits you to declare constants and variables, and then use them in SQL and procedural statements anywhere in the expression. Th
Row Counterparts of Table Operators SQL does not have counterparts tuple rename, tuple projection, tuple extension, tuple join and tuple compose. To obtain the same effects as
Project Description: I want to write some SQL statements. The things I need are between pages 5-7. The only problem is that i want it till tomorrow. Skills required is SQL
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