我有一张桌子,我想知道“ phone_number”和email_address字段上存在的最大长度值是什么。
我想知道是否存在任何输入的值大于允许的值。
这是我的查询
SELECT
hp.party_name
, hca.account_number
, hca.cust_account_id
-- , hcsu.LOCATION customer_site_name
, hcas.cust_acct_site_id
, hcp.phone_number
, hcp.email_address
, hl.address1
, hl.address2
, hl.address3
, hl.address4
, hl.city
, hl.province
, hl.postal_code
, hcas.status
, DECODE( hcas.attribute5, 'PUP', 'Y', 'N' )
, hca.status
FROM apps.hz_cust_accounts hca
INNER JOIN apps.hz_cust_acct_sites_all hcas ON hca.cust_account_id = hcas.cust_account_id
INNER JOIN apps.hz_party_sites hps ON hcas.party_site_id = hps.party_site_id
INNER JOIN apps.hz_locations hl ON hps.location_id = hl.location_id
INNER JOIN apps.hz_parties hp ON hps.party_id = hp.party_id
LEFT JOIN (
SELECT
owner_table_id
, max(case when contact_point_type = 'PHONE' then phone_number end) phone_number
, max(case when contact_point_type = 'EMAIL' then email_address end) email_address
FROM hz_contact_points
WHERE status = 'A'
AND primary_flag = 'Y'
AND owner_table_name = 'HZ_PARTY_SITES'
AND contact_point_type IN ('EMAIL','PHONE')
GROUP BY
owner_table_id
) hcp ON hcas.party_site_id = hcp.owner_table_id
WHERE hcas.status = 'A'
AND hps.status = 'A'
AND hca.status = 'A'
AND hca.account_number = ''
;
答案 0 :(得分:1)
如果要在表的给定字段中找到具有最大字段长度的行,请尝试以下查询。
com/pe/queries/
答案 1 :(得分:0)
一个字段的最大长度:
SELECT MAX(LENGTH(email_address)), MAX(LENGTH(phone_number)) FROM hz_contact_points
不需要分组依据,因为您正在汇总整个集合。请注意,这告诉您已知的最长数据(例如,它将返回72),但仅告诉您其他信息。然后,您将不得不再次查询以找到这种长度的行:
SELECT *
FROM hz_contact_points
WHERE LENGTH(email_address) = 72
例如,按电子邮件长度降序排列的前10行可能更容易:
SELECT * FROM (
SELECT *
FROM hz_contact_points
ORDER BY LENGTH(email_address) DESC
) a
WHERE rownum <= 10
(如果您使用的是oracle12c +,则可以取消外部查询并编写FETCH FIRST 10 ROWS ONLY
)
具有多个电子邮件地址的行:
SELECT *
FROM hz_contact_points
WHERE email_address LIKE '%@%@%'