What does pipe row in Oracle?

What does pipe row in Oracle?

The PIPE ROW statement, which can appear only in the body of a pipelined table function, returns a table row (but not control) to the invoker of the function.

Can a function return a table in Oracle?

With collections and the table() function, a function can return a table that can be queried in an SQL statement.

What does pipe symbol do in SQL?

Pipe Character (|) is the Bitwise OR Operator in T-SQL The pipe character (|) is the bitwise OR operator. The query below produces the truth table for OR operations between the AttributeA and AttributeB columns. The LogicalOR will be 1 if any either AttributeA or AttributeB equals 1.

What is Authid Definer in Oracle?

The authid definer rights is the opposite of the authid current_user clause. Essentially the same as the “grant execute:” clause” the authid definer rights allows the specified users’ grants to be used for privileges within Oracle.

What is Rowtype?

The %ROWTYPE attribute provides a record type that represents a row in a database table. The record can store an entire row of data selected from the table or fetched from a cursor or cursor variable. Variables declared using %ROWTYPE are treated like those declared using a datatype name.

How do I declare a Rowtype variable in PL SQL?

The %ROWTYPE attribute, used to declare PL/SQL variables of type record with fields that correspond to the columns of a table or view, is supported by the Db2® data server. Each field in a PL/SQL record assumes the data type of the corresponding column in the table. A record is a named, ordered collection of fields.

Can we create parameterized view in Oracle?

Oracle does not support parameters with Views, but we can always find a workaround. In the case of parameterized views there could be various workarounds. In this post I am giving a neat and simple example to create a parameterized view, it is my personal favorite workaround. I am using SCOTT schema for this example.

Can a function return multiple values in Oracle?

Normally when we came across the difference between function and procedure, we say that function always returns value(e.g single) where as procedure may or may not. But we can use OUT parameter to return multiple value from a procedure.

What are SQL Named Pipes?

Named pipes is a windows system for inter-process communication. In the case of SQL server, if the server is on the same machine as the client, then it is possible to use named pipes to tranfer the data, as opposed to TCP/IP. It’s not Windows-only, as your answer makes it appear.

What is definer and invoker?

DEFINER is the account specified as the DEFINER when the stored routine or view was created (see the section above). INVOKER is the account invoking the routine or view. As an example, let’s assume a routine, created by a superuser who’s specified as the DEFINER , deletes all records from a table.

What is the use of Authid current_user?

Answer: The authid current_user is used when you want a piece of code (PL/SQL) to execute with the privileges of the current user, and NOT the user ID that created the procedure. This is termed a “invoker rights”, the opposite of “definer rights”. The authid current_user is the opposite of authid definer.

What does Rowtype mean in Oracle?

The %ROWTYPE attribute provides a record type that represents a row in a database table. The record can store an entire row of data selected from the table or fetched from a cursor or cursor variable. Fields in a record and corresponding columns in a row have the same names and datatypes.

How do you use %Rowtype?

Each field assumes the data type of its corresponding column. The %ROWTYPE attribute is prefixed by a cursor name or a cursor variable name. The syntax is record cursor%ROWTYPE , where record is an identifier that is assigned to the record, and cursor is an explicitly declared cursor within the current scope.

Can we pass parameters to a materialized view?

Materialized views DO NOT accept parameters. Instead, when you query a materialized view, you can use any filtering condition.