Answer Posted / gaurav rajvanshi

1.Every 3 secs
2.At commit(when a tx commits)
3.When one third of redo log buffer is filled.
4.When there is more than 1 Mb of redo entries(redo data or
changes) in the redo log buffer
5.Before DBWR background process writes dirty buffers from
db cache to datafiles(database)

At any of the above instances(cases) lgwr writes the redo
entries or redo data or changes from the redo log buffer to
the redo log file.

What is an Oracle SYSTEM tablespace and when is it Created?

1100

---

What is an oracle database schema?

1112

---

Can a Tablespace hold objects from different Schemes in Oracle?

1032

---

What is an Integrity Constrains in Oracle?

1182

---

What is the function of Redo Log in Oracle?

1205

---

What is an Oracle Data Segment?

1038

---

What are the uses of Oracle Rollback Segment?

1119

---

Teradata: How can we know the indexed column in a table?

1885

---

How to define Data Block size in Oracle?

1104

---

Can a View based on another View in Oracle?

1021

---

What is the use of Oracle Control File?

1065

---

What is an Oracle Rollback Segment?

1105

---

How to calculate the approximate size of the SGA based on the size of the block,shared_pool,redo_buffer_cache and db_buffer_cache?

2689

---

What are the consideration at tehe migration of Oracle 9i to 10G.

3049

---

What are Oracle Schema Objects?

1105

---