Oracle

How to fix the Oracle error PLS-01471: The keyword DISTINCT must be present in a COUNT(DISTINCT sim_expr)?

How to fix the Oracle error ORA-29884: domain index is defined on the column to be dropped?

How to fix the Oracle error DIA-48102: encountered the end-of-file when reading the file?

How to fix the Oracle error ORA-04933: initial service identifier is non-zero?

How to fix the Oracle error ORA-19731: cannot apply change to unverified plugged-in datafile string?

How to fix the Oracle error ORA-23466: flavor requires missing object “string”.”string”?

How to fix the Oracle error ORA-26837: Server “string” is not an XStream inbound server?

How to fix the Oracle error ORA-19250: XQTY0030 – too many values to validate expression?

How to fix the Oracle error ORA-24327: need explicit attach before authenticating a user?

How to fix the Oracle error PRCD-01139: The current server {0} where RAC One Node database {1} is running is not in the given candidate server list {2}?

How to fix the Oracle error DRG-11422: linguistic initialization failed?

How to fix the Oracle error ORA-30001: trim set should have only one character?