May 28, 2018 Leave a comment
Questions: Is there a way to check if a table exists without selecting and checking values from it? That is, I know I can go SELECT testcol FROM testtable and check the count of fields returned, but i...
May 28, 2018 Leave a comment
Questions: I am new to MySQL. I want to execute a text file containing SQL queries. I tried to run source /Desktop/test.sql and received the error, mysql> . \home\sivakumar\Desktop\test.sql ERROR: ...
May 27, 2018 Leave a comment
Questions: Is there a way to check if a table exists without selecting and checking values from it? That is, I know I can go SELECT testcol FROM testtable and check the count of fields returned, but i...
May 27, 2018 Leave a comment
Questions: I am new to MySQL. I want to execute a text file containing SQL queries. I tried to run source /Desktop/test.sql and received the error, mysql> . \home\sivakumar\Desktop\test.sql ERROR: ...
May 26, 2018 Leave a comment
Questions: I am new to MySQL. I want to execute a text file containing SQL queries. I tried to run source /Desktop/test.sql and received the error, mysql> . \home\sivakumar\Desktop\test.sql ERROR: ...
May 25, 2018 Leave a comment
Questions: I couldn’t find any information about this in the documentation, but how can I get a list of tables created in SQLAlchemy? I used the class method to create the tables. Answers: ...
May 17, 2018 Leave a comment
Questions: I have a CSV file sent to me in CSV. The field of interest is 8 digits. Some of those started with a 0. The field was sent numeric. So, I now have dropped some leading zeros. I already conv...
May 15, 2018 Leave a comment
Questions: I am connecting MySQL – 8.0 with MySQL Workbench and getting the below error: Authentication plugin ‘caching_sha2_password’ cannot be loaded: dlopen(/usr/local/mysql/lib/p...
May 15, 2018 Leave a comment
Questions: I’m trying to modify a table to make its primary key column AUTO_INCREMENT after the fact. I have tried the following SQL, but got a syntax error notification. ALTER TABLE document ALTER CO...
April 26, 2018 Leave a comment
Questions: I have a table table1 with three columns and a bunch of rows: [key_col|col_a|col_b] I want to update col_a with a set of values (i.e. leaving col_b unchanged), something like this: INSERT I...
