select document based on date range
Structure
CREATE TABLE `template` (
`name` VARCHAR(16) NOT NULL COLLATE 'utf8_unicode_ci',
`valid` DATE NULL DEFAULT NULL,
UNIQUE INDEX `name` (`name`)
)
COLLATE='utf8_unicode_ci'
ENGINE=InnoDB;
Data
I am trying to select right template name based on date. "Valid" column represents date till template is valid. If Template have 0000-00-00 or NULL valid date, that means that this template is current (latest). Template names does not suggest order (they can be random string).
Scenario:
If I have user, that will be created let's say 2010-01-01, then select should pick template with name "yes_4".
Scenario:
User was created in 2018-01-01, then template selected should have name "agreement_x"
Scenario:
User created in 2019-01-15 will select row with name "template_2"
So far:
:date = - user created
query
SELECT * FROM `template`
WHERE DATE(`valid`) < DATE(:date)
ORDER BY DATE(`valid`) DESC
LIMIT 1
mysql
asked 14 mins ago
Ing. Michal HudakIng. Michal Hudak
101
New contributor
Ing. Michal Hudak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
add a comment |
Structure
CREATE TABLE `template` (
`name` VARCHAR(16) NOT NULL COLLATE 'utf8_unicode_ci',
`valid` DATE NULL DEFAULT NULL,
UNIQUE INDEX `name` (`name`)
)
COLLATE='utf8_unicode_ci'
ENGINE=InnoDB;
Data
I am trying to select right template name based on date. "Valid" column represents date till template is valid. If Template have 0000-00-00 or NULL valid date, that means that this template is current (latest). Template names does not suggest order (they can be random string).
Scenario:
If I have user, that will be created let's say 2010-01-01, then select should pick template with name "yes_4".
Scenario:
User was created in 2018-01-01, then template selected should have name "agreement_x"
Scenario:
User created in 2019-01-15 will select row with name "template_2"
So far:
:date = - user created
query
SELECT * FROM `template`
WHERE DATE(`valid`) < DATE(:date)
ORDER BY DATE(`valid`) DESC
LIMIT 1
mysql
asked 14 mins ago
Ing. Michal HudakIng. Michal Hudak
101
New contributor
Ing. Michal Hudak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
2010-01-01 ... template with name "yes_4". WHY???
– Akina
9 mins ago
add a comment |
Structure
CREATE TABLE `template` (
`name` VARCHAR(16) NOT NULL COLLATE 'utf8_unicode_ci',
`valid` DATE NULL DEFAULT NULL,
UNIQUE INDEX `name` (`name`)
)
COLLATE='utf8_unicode_ci'
ENGINE=InnoDB;
Data
I am trying to select right template name based on date. "Valid" column represents date till template is valid. If Template have 0000-00-00 or NULL valid date, that means that this template is current (latest). Template names does not suggest order (they can be random string).
Scenario:
If I have user, that will be created let's say 2010-01-01, then select should pick template with name "yes_4".
Scenario:
User was created in 2018-01-01, then template selected should have name "agreement_x"
Scenario:
User created in 2019-01-15 will select row with name "template_2"
So far:
:date = - user created
query
SELECT * FROM `template`
WHERE DATE(`valid`) < DATE(:date)
ORDER BY DATE(`valid`) DESC
LIMIT 1
mysql
asked 14 mins ago
Ing. Michal HudakIng. Michal Hudak
101
New contributor
Ing. Michal Hudak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Structure
CREATE TABLE `template` (
`name` VARCHAR(16) NOT NULL COLLATE 'utf8_unicode_ci',
`valid` DATE NULL DEFAULT NULL,
UNIQUE INDEX `name` (`name`)
)
COLLATE='utf8_unicode_ci'
ENGINE=InnoDB;
Data
I am trying to select right template name based on date. "Valid" column represents date till template is valid. If Template have 0000-00-00 or NULL valid date, that means that this template is current (latest). Template names does not suggest order (they can be random string).
Scenario:
If I have user, that will be created let's say 2010-01-01, then select should pick template with name "yes_4".
Scenario:
User was created in 2018-01-01, then template selected should have name "agreement_x"
Scenario:
User created in 2019-01-15 will select row with name "template_2"
So far:
:date = - user created
query
SELECT * FROM `template`
WHERE DATE(`valid`) < DATE(:date)
ORDER BY DATE(`valid`) DESC
LIMIT 1
mysql
mysql
asked 14 mins ago
Ing. Michal HudakIng. Michal Hudak
101
New contributor
Ing. Michal Hudak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 14 mins ago
Ing. Michal HudakIng. Michal Hudak
101
New contributor
Ing. Michal Hudak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 14 mins ago
Ing. Michal HudakIng. Michal Hudak
101
New contributor
Ing. Michal Hudak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 14 mins ago
Ing. Michal HudakIng. Michal Hudak
101
asked 14 mins ago
Ing. Michal HudakIng. Michal Hudak
101
101
New contributor
Ing. Michal Hudak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Ing. Michal Hudak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Ing. Michal Hudak is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
2010-01-01 ... template with name "yes_4". WHY???
– Akina
9 mins ago
add a comment |
2010-01-01 ... template with name "yes_4". WHY???
– Akina
9 mins ago
2010-01-01 ... template with name "yes_4". WHY???
– Akina
9 mins ago
2010-01-01 ... template with name "yes_4". WHY???
– Akina
9 mins ago
add a comment |
1 Answer
1
active
oldest
votes
Something like
( SELECT *
FROM `template`
WHERE DATE(`valid`) >= DATE(:date)
ORDER BY DATE(`valid`)
LIMIT 1
)
UNION ALL
( SELECT *
FROM `template`
WHERE DATE(`valid`) <= '1970-01-01' OR `valid` IS NULL
)
ORDER BY `valid` DESC
LIMIT 1
or
SELECT *
FROM `template`
WHERE CASE WHEN DATE(`valid`) > '1970-01-01'
THEN `valid`
ELSE '2038-01-19'
END >= DATE(:date)
ORDER BY CASE WHEN DATE(`valid`) > '1970-01-01'
THEN `valid`
ELSE '2038-01-19'
END
LIMIT 1
and so on...
answered 29 secs ago
AkinaAkina
4,0361311
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
Something like
( SELECT *
FROM `template`
WHERE DATE(`valid`) >= DATE(:date)
ORDER BY DATE(`valid`)
LIMIT 1
)
UNION ALL
( SELECT *
FROM `template`
WHERE DATE(`valid`) <= '1970-01-01' OR `valid` IS NULL
)
ORDER BY `valid` DESC
LIMIT 1
or
SELECT *
FROM `template`
WHERE CASE WHEN DATE(`valid`) > '1970-01-01'
THEN `valid`
ELSE '2038-01-19'
END >= DATE(:date)
ORDER BY CASE WHEN DATE(`valid`) > '1970-01-01'
THEN `valid`
ELSE '2038-01-19'
END
LIMIT 1
and so on...
answered 29 secs ago
AkinaAkina
4,0361311
add a comment |
Something like
( SELECT *
FROM `template`
WHERE DATE(`valid`) >= DATE(:date)
ORDER BY DATE(`valid`)
LIMIT 1
)
UNION ALL
( SELECT *
FROM `template`
WHERE DATE(`valid`) <= '1970-01-01' OR `valid` IS NULL
)
ORDER BY `valid` DESC
LIMIT 1
or
SELECT *
FROM `template`
WHERE CASE WHEN DATE(`valid`) > '1970-01-01'
THEN `valid`
ELSE '2038-01-19'
END >= DATE(:date)
ORDER BY CASE WHEN DATE(`valid`) > '1970-01-01'
THEN `valid`
ELSE '2038-01-19'
END
LIMIT 1
and so on...
answered 29 secs ago
AkinaAkina
4,0361311
add a comment |
Something like
( SELECT *
FROM `template`
WHERE DATE(`valid`) >= DATE(:date)
ORDER BY DATE(`valid`)
LIMIT 1
)
UNION ALL
( SELECT *
FROM `template`
WHERE DATE(`valid`) <= '1970-01-01' OR `valid` IS NULL
)
ORDER BY `valid` DESC
LIMIT 1
or
SELECT *
FROM `template`
WHERE CASE WHEN DATE(`valid`) > '1970-01-01'
THEN `valid`
ELSE '2038-01-19'
END >= DATE(:date)
ORDER BY CASE WHEN DATE(`valid`) > '1970-01-01'
THEN `valid`
ELSE '2038-01-19'
END
LIMIT 1
and so on...
answered 29 secs ago
AkinaAkina
4,0361311
Something like
( SELECT *
FROM `template`
WHERE DATE(`valid`) >= DATE(:date)
ORDER BY DATE(`valid`)
LIMIT 1
)
UNION ALL
( SELECT *
FROM `template`
WHERE DATE(`valid`) <= '1970-01-01' OR `valid` IS NULL
)
ORDER BY `valid` DESC
LIMIT 1
or
SELECT *
FROM `template`
WHERE CASE WHEN DATE(`valid`) > '1970-01-01'
THEN `valid`
ELSE '2038-01-19'
END >= DATE(:date)
ORDER BY CASE WHEN DATE(`valid`) > '1970-01-01'
THEN `valid`
ELSE '2038-01-19'
END
LIMIT 1
and so on...
answered 29 secs ago
AkinaAkina
4,0361311
answered 29 secs ago
AkinaAkina
4,0361311
answered 29 secs ago
AkinaAkina
4,0361311
answered 29 secs ago
AkinaAkina
4,0361311
4,0361311
add a comment |
add a comment |
Ing. Michal Hudak is a new contributor. Be nice, and check out our Code of Conduct.
Ing. Michal Hudak is a new contributor. Be nice, and check out our Code of Conduct.
Ing. Michal Hudak is a new contributor. Be nice, and check out our Code of Conduct.
Ing. Michal Hudak is a new contributor. Be nice, and check out our Code of Conduct.
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2010-01-01 ... template with name "yes_4". WHY???
– Akina
9 mins ago