Types of system SQL templates
This section gives detail information related to the different types of the pre-defined SQL templates.
Even though the statements of each group of templates vary from database to database, according to the operations they are intended to accomplish, they are also grouped on the basis of their types in each folder.
The below table provides these types and their related information.
| Name | Function | Associated components | Required component parameters |
|---|---|---|---|
| Aggregate | Realizes aggregation (sum, average, count, etc.) over a set of data. | tSQLTemplateAggregate | Database name Source table name Target table name |
| Commit | Sends a Commit instruction to RDBMS. | tSQLTemplate tSQLTemplateAggregate tSQLTemplateCommit tSQLTemplateFilterColumns tSQLTemplateFilterRows tSQLTemplateMerge tSQLTemplateRollback | None |
| Rollback | Sends a Rollback instruction to RDBMS. | tSQLTemplate tSQLTemplateAggregate tSQLTemplateCommit tSQLTemplateFilterColumns tSQLTemplateFilterRows tSQLTemplateMerge tSQLTemplateRollback | None |
| DropSourceTable | Removes a source table. | tSQLTemplate tSQLTemplateAggregate tSQLTemplateFilterColumns tSQLTemplateFilterRows | Table name (when use tSQLTemplate) Source table name |
| DropTargetTable | Removes a target table. | tSQLTemplateAggregate tSQLTemplateFilterColumns tSQLTemplateFilterRows | Target table name |
| FilterColumns | Selects and extracts a set of data from given columns in RDBMS. | tSQLTemplateAggregate tSQLTemplateFilterColumns tSQLTemplateFilterRows | Target table name (and schema) Source table name (and schema) |
| FilterRow | Selects and extracts a set of data from given rows in RDBMS. | tSQLTemplateAggregate tSQLTemplateFilterColumns tSQLTemplateFilterRows | Target table name (and schema) Source table name (and schema) Conditions |
| MergeInsert | Inserts records from the source table to the target table. | tSQLTemplateMerge tSQLTemplateCommit | Target table name (and schema) Source table name (and schema) Conditions |
| MergeUpdate | Updates the target table with records from the source table. | tSQLTemplateMerge tSQLTemplateCommit | Target table name (and schema) Source table name (and schema) Conditions |