Class Sequel::Oracle::Dataset
In: lib/sequel/adapters/oracle.rb
Parent: Sequel::Dataset

Methods

Included Modules

DatasetMethods

Classes and Modules

Module Sequel::Oracle::Dataset::ArgumentMapper
Module Sequel::Oracle::Dataset::BindArgumentMethods
Module Sequel::Oracle::Dataset::PreparedStatementMethods

Constants

DatasetClass = self
PREPARED_ARG_PLACEHOLDER = ':'.freeze

Public Instance methods

Execute the given type of statement with the hash of values.

[Source]

     # File lib/sequel/adapters/oracle.rb, line 367
367:       def call(type, bind_vars={}, *values, &block)
368:         ps = to_prepared_statement(type, values)
369:         ps.extend(BindArgumentMethods)
370:         ps.call(bind_vars, &block)
371:       end

[Source]

     # File lib/sequel/adapters/oracle.rb, line 373
373:       def fetch_rows(sql)
374:         execute(sql) do |cursor|
375:           offset = @opts[:offset]
376:           rn = row_number_column
377:           cps = db.conversion_procs
378:           cols = columns = cursor.get_col_names.map{|c| output_identifier(c)}
379:           metadata = cursor.column_metadata
380:           cm = cols.zip(metadata).map{|c, m| [c, cps[m.data_type]]}
381:           columns = cols.reject{|x| x == rn} if offset
382:           @columns = columns
383:           while r = cursor.fetch
384:             row = {}
385:             r.zip(cm).each{|v, (c, cp)| row[c] = ((v && cp) ? cp.call(v) : v)}
386:             row.delete(rn) if offset
387:             yield row
388:           end
389:         end
390:         self
391:       end

Prepare the given type of query with the given name and store it in the database. Note that a new native prepared statement is created on each call to this prepared statement.

[Source]

     # File lib/sequel/adapters/oracle.rb, line 396
396:       def prepare(type, name=nil, *values)
397:         ps = to_prepared_statement(type, values)
398:         ps.extend(PreparedStatementMethods)
399:         if name
400:           ps.prepared_statement_name = name
401:           db.set_prepared_statement(name, ps)
402:         end
403:         ps
404:       end

Oracle requires type specifiers for placeholders, at least if you ever want to use a nil/NULL value as the value for the placeholder.

[Source]

     # File lib/sequel/adapters/oracle.rb, line 409
409:       def requires_placeholder_type_specifiers?
410:         true
411:       end

[Validate]