Use the column checkboxes to build your query. Header columns sets/unsets all columns
SELECT MANDT, CLIENT_ID, CLIENT_TYPE, CLIENT_USER, CLIENT_AUTH_BASIC, CLIENT_AUTH_CERT, GT_SAMLBEARER_IS_ACTIVE, GT_SAMLBEARER_OAUTH_STS, GT_SAMLBEARER_CLIENT_CRED_CHK, GT_CLIENT_CRED_IS_ACTIVE, GT_AUTHCODE_IS_ACTIVE, GT_AUTHCODE_REDIRECTURI, GT_AUTHCODE_CLIENT_CRED_CHK, TOKEN_LIFETIME_IN_SECS, GT_SAMLBEARER_IDP_NAME, CREATED_BY, CREATED_ON, CREATED_AT, CHANGED_BY, CHANGED_ON, CHANGED_AT, CR_TIMESTAMP, CH_TIMESTAMP, GT_SAMLBEARER_REQUIRE_CLNT_ID, AUTHCODE_LIFETIME FROM OA2_SD_CL