Answer / guest

Cause: A hierarchy was found to have no root level.

Action: Use the ADD_LEVEL_TO_HIERARCHY procedure to add a
level to the hierarchy. Specify the root level in the child
parameter and leave the parent parameter blank.

Please add more information about this Error

TNS-00011: INTCTL: error while starting the Connection Manager

1 Answers  

---

TNS-04080: Failed to reload

1 Answers  

---

ORA-01456: may not perform insert/delete/update operation inside a READ ONLY transaction

1 Answers  

---

PLS-00439: A LIMIT clause must be used within a BULK FETCH

1 Answers  

---

ORA-24325: this OCI operation is not currently allowed

1 Answers  

---

NNL-00897: Messages sent: number

1 Answers  

---

LPX-00324: "~S" is not a valid value for the lang attribute of xsl:sort

1 Answers  

---

PLS-00401: different column types between cursor SELECT statement and return value found at 'string'

1 Answers  

---

ORA-39301: schema does not exist or is in use

1 Answers  

---

QSM-02050: subquery using the ALL clause in mv

1 Answers  

---

ORA-30934: 'string' (string node) cannot be inserted in parent 'string' (string node)

1 Answers  

---

DRG-10533: invalid user name: string

1 Answers  

---