Class: ActiveRecord::ConnectionAdapters::IBM_DB2_LUW_COBRA
- Inherits:
-
IBM_DB2_LUW
- Object
- IBM_DataServer
- IBM_DB2
- IBM_DB2_LUW
- ActiveRecord::ConnectionAdapters::IBM_DB2_LUW_COBRA
- Defined in:
- lib/active_record/connection_adapters/ibm_db_adapter.rb
Overview
class IBM_DB2_LUW
Instance Method Summary collapse
-
#limit_not_supported_types ⇒ Object
Cobra supports parameterised timestamp, hence overriding following method to allow timestamp datatype to be parameterised.
-
#rename_column(table_name, column_name, new_column_name) ⇒ Object
Alter table column for renaming a column This feature is supported for against DB2 V97 and above only.
Methods inherited from IBM_DB2_LUW
#query_offset_limit, #reorg_table
Methods inherited from IBM_DB2
#change_column, #change_column_default, #change_column_null, #execute, #get_datetime_mapping, #get_double_mapping, #get_time_mapping, #last_generated_id, #primary_key, #query_offset_limit, #select, #select_rows, #set_binary_default, #set_binary_value, #set_case, #set_text_default
Methods inherited from IBM_DataServer
#change_column_default, #change_column_null, #check_reserved_words, #create_index_after_table, #execute, #get_datetime_mapping, #get_double_mapping, #get_time_mapping, #initialize, #last_generated_id, #query_offset_limit, #remove_column, #reorg_table, #select, #select_rows, #set_binary_default, #set_binary_value, #set_case, #set_schema, #set_text_default, #setup_for_lob_table
Constructor Details
This class inherits a constructor from ActiveRecord::ConnectionAdapters::IBM_DataServer
Instance Method Details
#limit_not_supported_types ⇒ Object
Cobra supports parameterised timestamp, hence overriding following method to allow timestamp datatype to be parameterised
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# File 'lib/active_record/connection_adapters/ibm_db_adapter.rb', line 1848 def limit_not_supported_types [:integer, :double, :date, :time, :xml] end |
#rename_column(table_name, column_name, new_column_name) ⇒ Object
Alter table column for renaming a column This feature is supported for against DB2 V97 and above only
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# File 'lib/active_record/connection_adapters/ibm_db_adapter.rb', line 1854 def rename_column(table_name, column_name, new_column_name) _table_name = table_name.to_s _column_name = column_name.to_s _new_column_name = new_column_name.to_s nil_condition = _table_name.nil? || _column_name.nil? || _new_column_name.nil? empty_condition = _table_name.empty? || _column_name.empty? || _new_column_name.empty? unless nil_condition if nil_condition || empty_condition raise ArgumentError,"One of the arguments passed to rename_column is empty or nil" end begin rename_column_sql = "ALTER TABLE #{_table_name} RENAME COLUMN #{_column_name} \ TO #{_new_column_name}" unless stmt = execute(rename_column_sql) error_msg = IBM_DB.conn_errormsg error_msg = IBM_DB.stmt_errormsg if error_msg.empty? if error_msg && !error_msg.empty? raise "Rename column failed : #{error_msg}" else raise StandardError.new('An unexpected error occurred during renaming the column') end end reorg_table(_table_name) ensure IBM_DB.free_stmt stmt if stmt end #End of begin end |