proc()

Read(238) Label: database, stored procedure,

Here’s how to use proc() function.

db.proc()

Description:

Call a database stored procedure.

Syntax:

db.proc( sql, param:type:mode:variable, ... )

Note:

The function calls a database stored procedure and sends its output variables to a cellset file. The output variables can be entered into the current context and their generated values can thus be referenced by the current cellset program.

Parameters:

db

Database connection object

sql

The statement for executing a stored procedure, like call test(?,?)

param

The value of an input parameter.

type

The data type of the parameter

mode

"i" or "o". "i" indicates an input parameter and "o" indicates an output parameter.

variable

The output variable's name, through which the result of executing the stored procedure can be referenced in a cellset file.

 

Values for type:

  public final static byte DT_DEFAULT = (byte) 0; // By default, perform automatic recognition.

  public final static byte DT_INT = (byte) 1;

  public final static byte DT_LONG = (byte) 2;

  public final static byte DT_SHORT = (byte) 3;

  public final static byte DT_BIGINT = (byte) 4;

  public final static byte DT_FLOAT = (byte) 5;

  public final static byte DT_DOUBLE = (byte) 6;

  public final static byte DT_DECIMAL = (byte) 7;

  public final static byte DT_DATE = (byte) 8;

  public final static byte DT_TIME = (byte) 9;

  public final static byte DT_DATETIME = (byte) 10;

  public final static byte DT_STRING = (byte) 11;

  public final static byte DT_BOOLEAN = (byte) 12;

 

   public final static byte DT_INT_ARR = (byte) 51;

  public final static byte DT_LONG_ARR = (byte) 52;

  public final static byte DT_SHORT_ARR = (byte) 53;

  public final static byte DT_BIGINT_ARR = (byte) 54;

  public final static byte DT_FLOAT_ARR = (byte) 55;

  public final static byte DT_DOUBLE_ARR = (byte) 56;

  public final static byte DT_DECIMAL_ARR = (byte) 57;

 

   public final static byte DT_DATE_ARR = (byte) 58;

  public final static byte DT_TIME_ARR = (byte) 59;

  public final static byte DT_DATETIME_ARR = (byte) 60;

  public final static byte DT_STRING_ARR = (byte) 61;

  public final static byte DT_BYTE_ARR = (byte) 62;

  public final static byte DT_CURSOR = (byte) 101;

  public final static byte DT_AUTOINCREMENT = (byte) 102;

Example:

Ø  Return a record through a stored procedure

 

A

 

1

=orac.proc("{call RQ_TEST_CUR(?,?)}",:101:"o":table1,1:0:"i":)

2

=table1

A2 references the result of executing the stored procedure via the output variable table1 in A1.It gets the same result as A1.

Here’re the contents of the stored procedure:

Ø  Return table sequences through a stored procedure

 

A

 

1

=orac.proc("{call proAA(?,?)}",:101:"o":a,:101:"o":b)

[[7369,7499,7521,…],[1,2,3]]. Return a sequence of table sequences; each table sequence is referenced by an output variable

2

=A1(1)

Return the first table sequence in the sequence of A1

3

=a

A3 and A4 get stored procedure results by referencing the output variables in A1

 4

=b

Here’re the contents of the stored procedure:

Related functions:

db.execute()

db.query()