Programming Guide - Actian

How You Can Use Database Procedures........................................................................... 155How You Can Use the Execute Immediate Statement ........................................................ 155How You Can Use Cursors to Access the Database ............................................................ 157How You Can Use Methods That Access the Database........................................................ 163How You Can Access a Database with DataStream Objects ...................................................... 165How You Can Select a Mode for a DataStream Object........................................................ 166How You Can Use SQLSelect Objects .............................................................................. 166How You Can Use Query Objects .................................................................................... 177How You Can Manage Transactions ...................................................................................... 182How You Can Control Concurrency.................................................................................. 182How You Can Manage Multiple Sessions and Transactions .................................................. 185How You Can Manage Transactions with Bitmaps, String Objects, Long Byte Objects, Long VcharObjects, and Data Streams............................................................................................ 186How You Can Manage Transaction Errors ......................................................................... 187How Running with Autocommit On Works ........................................................................ 187How You Can Use the Exit Statement with Transactions..................................................... 188How Programming for Multiple Sessions Works ...................................................................... 188How You Can Keep Track of the Current Session............................................................... 189How You Can Use Concurrent Frames and Multiple Sessions ............................................... 190How You Can Use Cursors, DataStream Objects, and Multiple Sessions ................................ 191How You Can Open a New Database Session.................................................................... 191How You Can Switch Database Sessions .......................................................................... 193How You Can Disconnect a Session................................................................................. 197Handling Database Errors ................................................................................................... 197How You Can Use the ErrorNumber and DBMSError Attributes ............................................ 198How You Can Handle DataStream Errors ......................................................................... 199How You Can Use BitmapObject and StringObject Methods ................................................ 200How You Can Use LongByteObject and LongVCharObject Methods....................................... 200How You Can Use the ErrorStatus Attribute...................................................................... 201How You Can Use the Inquire_sql Statement ................................................................... 201Choosing an Error Handling Strategy .............................................................................. 202Chapter 7: Working with Arrays, Table Fields, and Collections 205Arrays and Table Fields—Conceptual Background ................................................................... 205Ways to Create an Array ............................................................................................... 206Manipulating Arrays and Table Fields .............................................................................. 207How You Can Reference Table Fields............................................................................... 207Arrays ............................................................................................................................. 207How You Can Declare an Array....................................................................................... 209How You Can Reference an Array ................................................................................... 210Restrictions on Array Structure ...................................................................................... 211How You Can Manipulate Arrays..................................................................................... 212vi Programming Guide