A B C D E F G H I J K L M N O P Q R S T U V W

U

UNPIN_CLEAN - Static variable in interface global.GlobalConst

Optimization to avoid writing to disk when unpinned.

UNPIN_DIRTY - Static variable in interface global.GlobalConst

Forces the page to be written to disk when unpinned.

unpinPage(PageId, boolean) - Method in class bufmgr.BufMgr

Unpins a disk page from the buffer pool, decreasing its pin count.

Update - Class in query

Execution plan for updating tuples.

Update(AST_Update) - Constructor for class query.Update

Optimizes the plan, given the parsed query.

updateFields(Schema, String[]) - Static method in class query.QueryCheck

Checks whether field to update match the table schema.

UpdateLineColumn(char) - Method in class parser.SimpleCharStream

updateRecord(RID, byte[]) - Method in class heap.HeapFile

Updates the specified record in the heap file.

updateRecord(RID, byte[]) - Method in class heap.HFPage

Updates a record on the page.

UpdateStatement() - Method in class parser.MiniSql

updateValues(Schema, int[], Object[]) - Static method in class query.QueryCheck

Checks whether values to update matches the table schema.