In This Chapter

One basic task of a DataBlade API module is to send SQL statements to the database server for execution. To execute an SQL statement, a DataBlade API module must perform the following tasks:

• Assemble the SQL statement and send it to the database server for execution
• Process results that the database server returns to the module
• If the SQL statement (such as a SELECT) returns rows, obtain each row of data
• For each row, obtain the column value or values of interest
• Complete the execution of the statement

This chapter describes each of these execution steps in detail.