Oracle: ORA-00931 Error Message

ORA-00931 Error Message

Learn the cause and how to resolve the ORA-00931 error message in Oracle.

Description

When you encounter an ORA-00931 error, the following error message will appear:

• ORA-00931: missing identifier

Cause

This is an internal error message.

Resolution

The option(s) to resolve this Oracle error are:

Option #1

Contact customer support.

Oracle: ORA-00928 Error Message

ORA-00928 Error Message

Learn the cause and how to resolve the ORA-00928 error message in Oracle.

Description

When you encounter an ORA-00928 error, the following error message will appear:

• ORA-00928: missing SELECT keyword

Cause

You tried to create an Oracle VIEW, but missed the SELECT keyword.

Resolution

The option(s) to resolve this Oracle error are:

Option #1

Correct the CREATE VIEW statement and re-execute it.

For example, if you had tried to create a view as follows:

CREATE VIEW sup_orders AS
  suppliers.supplier_id, orders.quantity, orders.price
  FROM suppliers
  INNER JOIN orders
  ON suppliers.supplier_id = orders.supplier_id
  WHERE suppliers.supplier_name = 'IBM';

You would receive the following error message:

You could correct the CREATE VIEW statement by including the SELECT keyword as follows:

CREATE VIEW sup_orders AS
  SELECT suppliers.supplier_id, orders.quantity, orders.price
  FROM suppliers
  INNER JOIN orders
  ON suppliers.supplier_id = orders.supplier_id
  WHERE suppliers.supplier_name = 'IBM';

Oracle: ORA-00927 Error Message

ORA-00927 Error Message

Learn the cause and how to resolve the ORA-00927 error message in Oracle.

Description

When you encounter an ORA-00927 error, the following error message will appear:

• ORA-00927: missing equal sign

Cause

You tried to execute a statement, but missed an equal sign. This can happen in either the SET clause of a UPDATE statement or in a search condition.

Resolution

The option(s) to resolve this Oracle error are:

Option #1

If this error occurred in the SET clause of an UPDATE statement, add the missing equal sign and re-execute the statement.

For example, if you tried to execute the following:

UPDATE suppliers
SET supplier_name 'IBM'
WHERE supplier_id = 1000;

You would receive the following error message:

You could correct this error by adding the missing equal sign, as follows:

UPDATE suppliers
SET supplier_name = 'IBM'
WHERE supplier_id = 1000;

Option #2

If this error occurred in a search condition when you are trying to determine a "not equals" condition, add the missing equal sign and re-execute the statement.

For example, if you tried to execute the following:

SELECT *
FROM suppliers
WHERE supplier_id ! 1000;

You would receive the following error message:

You could correct this error by adding the missing equal sign, as follows:

SELECT *
FROM suppliers
WHERE supplier_id != 1000;

This statement would return all suppliers whose supplier_id is not equal to 1000.

Oracle: ORA-00926 Error Message

ORA-00926 Error Message

Learn the cause and how to resolve the ORA-00926 error message in Oracle.

Description

When you encounter an ORA-00926 error, the following error message will appear:

• ORA-00926: missing VALUES keyword

Cause

You tried to execute a INSERT statement and missed the VALUES keyword.

Resolution

The option(s) to resolve this Oracle error are:

Option #1

Try adding the missing VALUES keyword or use a sub-select. Then re-execute the statement.

For example, if you tried to execute the following:

INSERT INTO suppliers;

You would receive the following error message:

You could correct this error either by adding the missing VALUES keyword, as follows:

INSERT INTO suppliers
(supplier_id, supplier_name)
VALUES
(1000, 'IBM');

OR

You could add a sub-select as follows:

INSERT INTO supplier
(supplier_id, supplier_name)
SELECT account_no, name
FROM customers
WHERE city = 'Newark';

Oracle: ORA-00925 Error Message

ORA-00925 Error Message

Learn the cause and how to resolve the ORA-00925 error message in Oracle.

Description

When you encounter an ORA-00925 error, the following error message will appear:

• ORA-00925: missing INTO keyword

Cause

You tried to execute a INSERT statement and missed the INTO keyword.

Resolution

The option(s) to resolve this Oracle error are:

Option #1

Try adding the missing INTO keyword and re-execute the statement.

For example, if you tried to execute the following:

INSERT suppliers
(supplier_id, supplier_name)
VALUES
(1000, 'IBM');

You would receive the following error message:

You could correct this error with the following statement:

INSERT INTO suppliers
(supplier_id, supplier_name)
VALUES
(1000, 'IBM');

Oracle: ORA-00924 Error Message

ORA-00924 Error Message

Learn the cause and how to resolve the ORA-00924 error message in Oracle.

Description

When you encounter an ORA-00924 error, the following error message will appear:

• ORA-00924: missing BY keyword

Cause

You tried to execute a GROUP BY, ORDER BY, CONNECT BY, or GRANT (with IDENTIFIED) statement and missed the BY keyword.

Resolution

The option(s) to resolve this Oracle error are:

Option #1

Try adding the missing BY keyword and re-execute the statement.

For example, if you tried to execute the following:

SELECT department, SUM(sales) AS "Total sales"
FROM order_details
GROUP department;

You would receive the following error message:

You could correct this error with the following statement:

SELECT department, SUM(sales) AS "Total sales"
FROM order_details
GROUP BY department;

Oracle: ORA-00923 Error Message

ORA-00923 Error Message

Learn the cause and how to resolve the ORA-00923 error message in Oracle.

Description

When you encounter an ORA-00923 error, the following error message will appear:

• ORA-00923: FROM keyword not found where expected

Cause

You tried to execute a SELECT statement, and you either missed or misplaced the FROM keyword.

Resolution

The option(s) to resolve this Oracle error are:

Option #1

This error can occur when executing a SELECT statement.

For example, if you tried to execute the following SELECT statement:

SELECT *
suppliers;

You could correct this SELECT statement by including the FROM keyword as follows:

SELECT *
FROM suppliers;

Option #2

This error can also occur if you use an alias, but do not include the alias in double quotation marks.

For example, if you tried to execute the following SQL statement:

SELECT owner AS 'owner column'
FROM all_tables;

You could correct this SELECT statement by using double quotation marks around the alias.

SELECT owner AS "owner column"
FROM all_tables;