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CodePudding user response:

First take a look at your configuration file to have the set "ConnectionString";
Then see the ConnectionString setting is correct,

CodePudding user response:

Link string after confirmed the database service is open,

CodePudding user response:

reference 1st floor github_36000833 response:

first take a look at your configuration file to have the set "ConnectionString";
Then see the ConnectionString setting is correct,

A great god, and I am newbie college students still hope to teach

CodePudding user response:

refer to the second floor exception92 response:

link string after confirmed whether database service is open,

How to see their connection string

CodePudding user response:

reference 4 floor dyw15700038238 response:

Quote: refer to the second floor exception92 response:

link string after confirmed whether database service is open,

What do you think his problems link string

Query yourself at https://docs.microsoft.com/zh-cn/sql/sql-server/? View=SQL server -- ver15