The Database Bulk functions enable you to bundle multiple queries into one SQL statement. This significantly improves the throughput due to reduced need of context switching and network traversals. The functions are intended for batch usage only.
All functions without the parameter disableCommit will be auto commit after the function has executed.
Making an SQL Query
When making an SQL query it must follow a certain format and the order of the columns in the query must remain the same in the statement as in the where_clause.
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| Parameter | Description | ||
|---|---|---|---|
| Name of the database where the table resides | ||
| Statement to send to the database | ||
| The static_where_clause of the SQL statement stays the same throughout the batch mode execution | ||
| The where_clause of the SQL statement principal. The where_clause columns that are to be considered significant must correspond with the columns in the select statement. For example, when statement reads "select A, B and C from X", where A and B is significant, the where_clause must begin with "A=? and B=?". | ||
| The size of the bundled lookup SQL query, that is the number of UDRs with a unique UDR key to be bundled. The ideal | ||
| This parameter indicates which columns in the select statement are significant to tie a result row to its context (UDR). All columns to be used as significant columns must be included in SQL search condition, and they must be used in the same order as in the search condition. For example, when using an incoming UDR as context and a search condition matching its IMSI field, using significant columns = 1 ties all matching rows to this UDR, namely, all rows with the same IMSI as that carried by the UDR. | ||
| The total number of columns in the statement | ||
| The least time interval, in milliseconds, the workflow will allow before a database bulk lookup will be done | ||
disableCommit | An optional parameter to disable the commit statement from being performed at the end of every SQL transaction for this particular function. Setting this parameter to false will result in the commit statement to be performed at the end of every SQL transaction for this particular function. By default, will have the system has the disableCommit set to true unless otherwise changed via this parameter.
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Returns: | The returned object is a “Prepared Statement” object containing the added parameters, a prepared result list and a maintained contexts list. This object is a mandatory parameter to the |
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