How do you declare an array in PL SQL?
How do you declare an array in PL SQL?
You can use VARRAY for a fixed-size array: declare type array_t is varray(3) of varchar2(10); array array_t := array_t(‘Matt’, ‘Joanne’, ‘Robert’); begin for i in 1.. array. count loop dbms_output.
What is equivalent to array in PL SQL?
PL/SQL nested tables are like one-dimensional arrays. You can model multi-dimensional arrays by creating nested tables whose elements are also nested tables. Nested tables differ from arrays in two important ways: Arrays have a fixed upper bound, but nested tables are unbounded (see Figure 5-1).
How do you create a table in PL SQL?
1 Answer. EXECUTE IMMEDIATE ‘create table table_2 as select col1, col2, col3, col4 from table_1’; If you create the table dynamically, though, you’d also need to use dynamic SQL every time you wanted to subsequently query the table.
What is a SQL array?
An array is an ordered set of elements of a single built-in data type. Elements in the array can be accessed and modified by their index value. Array elements are referenced in SQL statements by using one-based indexing; for example, MYARRAY[1], MYARRAY[2], and so on.
What is PLSQL file in Oracle?
PL/SQL programs such as functions and procedures are stored in Oracle database in compiled form . This allows applications or users to share the same functionality stored in Oracle database. PL/SQL also allows you to define triggers that can be invoked automatically in response to particular events in associated tables. PL/SQL is a high-performance language inside Oracle Databases. Oracle adds many enhancements to the PL/SQL to make it more efficient to interact with Oracle databases.
What is pragma keyword in Oracle PL/SQL?
The PRAGMA keyword is used to signify that the remainder of the PL/SQL statement is a pragma, or directive, to the compiler. Also called apseudoinstruction, a pragma simply passes information to the compiler rather than getting transformed into a particular execution. The syntax for using the PRAGMA keyword is as follows:
Is Oracle Fusion used with PL/SQL?
If you want to build oracle application using SQL and PL/SQL then you need Fusion Middleware. But you could develop an application using SQL and PL/SQL with SQL Developer and APEX or PHP or .NET or Ruby on Rails or whatever, it would still be a PL/SQL development at heart, with just the front-end presentation handled by another technology.
What are PL/SQL cursors in Oracle Database?
Implicit Cursors. The implicit cursors are allocated by Oracle by default while executing SQL statements.
How do you declare an array in PL SQL? You can use VARRAY for a fixed-size array: declare type array_t is varray(3) of varchar2(10); array array_t := array_t(‘Matt’, ‘Joanne’, ‘Robert’); begin for i in 1.. array. count loop dbms_output. What is equivalent to array in PL SQL? PL/SQL nested tables are like one-dimensional arrays. You…