Querying sequential data with date/time and text values in the same column - sql

Question

My data is single field, and include date, time, hour but also include data that i need.
Already query 2 keyword but the data still big and too many empty second keyword
SELECT Field1
FROM TABLE1
WHERE Field1 Like '*EVENT_1' Or
Field1 Like '*DATETIME'
I expect the output is:
Thanks in advance

Answer 1

Start by importing your log data into Access. While doing so, tell Access to create its own Primary Key, which will be an AutoNumber:
[impLogData]
ID Field1
-- ------------------
1 May/01/2019 7:00
2 EVENT_0
3 EVENT_1 - val:10
4 EVENT_2
5 EVENT_3
6 EVENT_4
7 EVENT_5
8 EVENT_6
9 May/01/2019 8:00
10 EVENT_2
11 EVENT_3
12 EVENT_12
13 EVENT_13
14 EVENT_14
15 May/01/2019 9:00
16 EVENT_0
17 EVENT_1 - val:15
18 EVENT_2
Create a [tblLogTime] table as
ID - Long Integer, Primary Key
logTime - Date/Time
and populate it with
INSERT INTO tblLogTime ( ID, logTime )
SELECT impLogData.ID, CDate([Field1]) AS Expr1
FROM impLogData
WHERE (((IsDate([Field1]))=True));
producing
[tblLogTime]
ID logTime
-- -------------------
1 2019-05-01 07:00:00
9 2019-05-01 08:00:00
15 2019-05-01 09:00:00
Then create a [tblLogEvent] table as
logTime - Date/Time
logEvent - Text(255)
and populate it with
INSERT INTO tblLogEvent ( logTime, logEvent )
SELECT DMax("logTime","tblLogTime","ID < " & [impLogData].[ID]) AS Expr1, impLogData.Field1
FROM impLogData LEFT JOIN tblLogTime ON impLogData.ID = tblLogTime.ID
WHERE (((tblLogTime.ID) Is Null));
producing
[tblLogEvent]
logTime logEvent
------------------- ----------------
2019-05-01 07:00:00 EVENT_0
2019-05-01 07:00:00 EVENT_1 - val:10
2019-05-01 07:00:00 EVENT_2
2019-05-01 07:00:00 EVENT_3
2019-05-01 07:00:00 EVENT_4
2019-05-01 07:00:00 EVENT_5
2019-05-01 07:00:00 EVENT_6
2019-05-01 08:00:00 EVENT_2
2019-05-01 08:00:00 EVENT_3
2019-05-01 08:00:00 EVENT_12
2019-05-01 08:00:00 EVENT_13
2019-05-01 08:00:00 EVENT_14
2019-05-01 09:00:00 EVENT_0
2019-05-01 09:00:00 EVENT_1 - val:15
2019-05-01 09:00:00 EVENT_2
You can then select EVENT_1 rows using
SELECT tblLogEvent.logTime, tblLogEvent.logEvent
FROM tblLogEvent
WHERE (((tblLogEvent.logEvent) Like "EVENT_1 *"))
ORDER BY tblLogEvent.logTime;
producing
logTime logEvent
------------------- ----------------
2019-05-01 07:00:00 EVENT_1 - val:10
2019-05-01 09:00:00 EVENT_1 - val:15