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how to count the number of records with ExecuteScalar if more than one then cannot insert into in the MS Access database on vb.net

score 233 · Answer 1 · 2023-07-03T08:57:31.473000

233

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how to count the number of records with ExecuteScalar if more than one then cannot insert into in the MS Access database on vb.net

Published on 03 July 2023 at 08:57

score 1.2k · Answer 2 · 2022-06-27T13:08:23.667000

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score 579 · Answer 3 · 2022-05-15T08:53:42.010000

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Published on 15 May 2022 at 08:53

score 632 · Answer 4 · 2022-04-23T16:12:06.627000

632

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Published on 23 April 2022 at 16:12

score 1k · Answer 5 · 2022-01-09T14:00:48.307000

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score 535 · Answer 6 · 2021-10-05T15:24:57.547000

535

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score 2.4k · Answer 7 · 2021-07-01T02:46:17.893000

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score 231 · Answer 8 · 2021-04-16T00:23:05.350000

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score 129 · Answer 9 · 2021-01-31T16:48:35.097000

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score 220 · Answer 11 · 2020-09-09T16:01:23.223000

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Published on 09 September 2020 at 16:01

score 2.2k · Answer 12 · 2020-09-06T00:05:38.857000

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score 72 · Answer 15 · 2020-03-21T13:52:27.383000

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score 336 · Answer 16 · 2020-02-17T19:36:21.150000

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score 500 · Answer 17 · 2020-02-16T13:38:28.057000

500

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Published on 16 February 2020 at 13:38

score 67 · Answer 18 · 2019-12-18T07:14:18.927000

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score 320 · Answer 19 · 2019-09-08T10:47:47.760000

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score 46 · Answer 20 · 2019-06-23T20:44:02.127000

46

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List Question

how to count the number of records with ExecuteScalar if more than one then cannot insert into in the MS Access database on vb.net

The first item in a list-expansion cannot be null

System.InvalidOperationException: 'Connection must be valid and open.'

why do i get error Must declare the scalar variable "@x". while the query works in the sql window?

C# Using ExecuteScalar() Method With Where Clause in SqlCommand

SqliteCommand.ExecuteScalar() returns null (C# 5.0 and System.Data.Sqlite)

ExecuteScalarAsync() does not return the same value returned from stored procedure

ExecuteScalar not returning value when there should be one

ExecuteScalar method to retrieve SQL Server 2019 table column list in Visual Studio 2019 c-sharp is incorrectly ASCII sorted

Get value from sql select if parameter may be null

ExecuteScalar function fails. Must declare the scalar variable '@DeviceId'

Why am I getting "Specified Cast is Not Valid" casting an int return value to int?

Dynamic SQL Query in C#

Data type mismatch using execute scalar

Problem with taking data from a table using Execute Scalar (C#)

npgsql executescalar() allways returns nothing

Select with a ExecuteScalar() not working when i use a variable, always return empty, when i don't use variable it works - C#

Checking if record exist for 2 datatable

Object cannot be assigned to other types from DBNull

How to fix executescalar not having an output

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