what is primary dns suffix

corresponding to different records cannot be the same or empty. Different values in this field can be used to differentiate each record, just as we distinguish different people from each other. it has a name, but it cannot be used as the primary key. Because the name of a person is easy to duplicate, and the ID card number is different for everyone, you can use

student score of 1 to Score1, when I add a student information of 2 to the Student1 table, it is added unsuccessfully, because there is no association, unless there is a student score of 2 in Score1. Only in this way can there be referential effect, so the referential integrity is ensured. Add:

simulating flight. Eric 15:23:35 you mean to use a library plug-in software 15:25:08 games and other large files, do not use the dot matrix PKM for management dot matrix software 15:25:40 because there is basically no knowledge value (editing, reading, and experiences ), so you can use Windows Resource Manager plug-in software 15:25:43 what do you mean? Eric 15:27:44 I checked the data folder.

LRU is an important linked list in buffer cache, its function I no longer detailed, already has a lot of relevant information. This is mainly discussed with you the main LRU, auxiliary LRU role. Let's look at a test first. Step 1: Environment introduction Let's look at the size of the buffer cache: Sql> Show SGA Total System Global area 1073741824 bytes Fixed Size 1284344 bytes Variable Size 96049741