Check if a table exists on database MySQL using Stored Procedure
Hi,Is there a way to check if a table exists on database MySQL using Stored Procedure?This is the SP, I expected when the table exists the variable value `titem_id` return 1 and when table not exists...
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MySQL 5.5.62 group_concat with where clause
Hi all,I got this problem with `Group_Concat` and a `where` filter using query `INNER JOIN` and MySQL 5.5.62 version.This is the query (I'm sorry but if enter the query text the question is not...
View ArticleMYSQL Error
I shut down my machine and restarted it. After that the mySQL stopped working and gives me error. Can't connect to MySQL server on 'localhost' (10061)
View ArticleHow Can i display the output of MySQL “PRINT” Command in C#?
Hello there,I am trying to run a mysql stored procedure using c# asp net.This stored procedure tried in mysql works fine.Instead tested on code behind of my project I have mysql syntax error.> ERROR...
View Articleproblem of System.NullReferenceException : aspx, c# et mysql
Hello,I used SqlDataSource and mysql database and i've got a message of System.NullReferenceException that i doesn't find where is the problem.the error message is the following...
View ArticleSQL Query to find all table names on a database with MySQL
These are tables list on database MySql version 8.0.17 t_contents_s300_10_2021 t_contents_s300_1_2021 t_contents_s300_2_2021 t_contents_s300_3_2021 t_contents_s34d_1_2021...
View ArticleMySQL Stored Procedure IF multiple statement
Hi,this is my stored procedure on database MySql version 8.0.17CREATE DEFINER=`root`@`%`PROCEDURE`SP`(IN tun CHAR(100), tmonth CHAR(100))BEGINIFRIGHT(tun,2) = '00'THENSET @s = CONCAT('SELECT * FROM...
View ArticleSQL Query to union all table names on a database with MySQL
Hi,I use this SQL query for find, in database MySql version 8.0.17, the tables whose name corresponds to the condition indicated in the clause LIKESELECT table_name FROM information_schema.TABLES WHERE...
View ArticleSet rows value as column name using MySql version 8.0.17
Hi,I populate a table of a database MySql version 8.0.17, with an external file in csv format.This is the table filled with data from the external csv fileSELECT*FROM `t_contents_s3sv_1_2021` orderby...
View ArticleDB2 Connectivity issue
I get the Unable to load DLL 'db2app64.dll': The specified module could not be founderror while trying to connect DB2 using IBM.Data.DB2.Core nuget package. Works fine in a console application, But not...
View Articlehow to convert sql connection to odbc connection for Oracle database?
Hi,i need help to connect oracle database using ODBC connection. Right now this application is working using sql connection for sql database and i was able to insert data. so what i need to change on...
View ArticleDeleting many rows from a big table MySql 5.5.46
Hi,The following statement deletes duplicate rows and keeps the highest idDELETE t1 FROM contacts t1INNERJOIN contacts t2 WHERE t1.id < t2.id AND t1.email = t2.email;This query references the...
View ArticleHow can I union all rows of two different tables using MySQL 8.0.17 version?
Hi,These are two tables of my MySQL database 8.0.17On these tables the corresponding column for each tables is the column tUnity-- ------------------------------ Table structure for t_release--...
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Row to column transformation in MySQL version 8.0.17 using Pivot
HiUnfortunately MySQL does not have a PIVOT function which is basically for what I trying to do.I populate a table of a database MySql version 8.0.17, with an external file in csv format.This is the...
View ArticleFind table name on the database using stored procedure on MySql 8.0.17
Hi,This is a list name of tables stored a database MySql version 8.0.17+------------------+| listTable |+------------------+| Table_A2_11_2021 || Table_L7_12_2021 || Table_C3_1_2021 || Table_D8_10_2021...
View ArticleMySql version 8.0.17 average datediff
Hi, I need your appreciated helpIn the table stored an a database MySql version 8.0.17 I have these four field set as datetime...
View ArticleUpdate table with chapters, paragraphs and paragraph content using MySql...
Hi, I need your help…In the table t_contents stored an a database MySql version 8.0.17 I have these rows+-------------------------+-------+-------+-----+| Contents | sID_c | sID_p | sID...
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SQL Query with variable name table in Stored Procedure using MySql 8 version
Hi,This is my SQL query that working correctly and it's stored an a database MySql version 8.0.17(I'm sorry but if I'm paste the query code the question is not posted... does anyone know why?)I've...
View ArticleEPPlus, .NET Core3 and setting value of Excel cell
Hi,Trying to get & update an existing cell's value:var q1 = worksheet.Cells["A11"].Value; // here I get a non-empty string worksheet.Cells["A11"].Value = "new string"; var q2 =...
View ArticleHow to Avoid Application getting hanged while working with Excel
Hi,I have below method which opens Excel (macro) in a windows application. internal void CEGForm(Project project, int quotationNo, string currencyCode, string reportname) { Excel.Application excelApp =...
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