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Hidden Features of MySQL
I've been working with Microsoft SQL Server with many years now but have only just recently started to use MySQL with my web applications, and I'm hungry for knowledge.
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SQL Logic Operator Precedence: And and Or
...who like to consult references (in alphabetic order):
Microsoft Transact-SQL operator precedence
Oracle MySQL 9 operator precedence
Oracle 10g condition precedence
PostgreSQL operator Precedence
SQL as understood by SQLite
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Use a LIKE statement on SQL Server XML Datatype
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[Err] 42000 - [SQL Server]Conversion of one or more characters from XML to target collation impossible
– digz6666
May 10 '17 at 4:32
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SQL Server: Get data for only the past year
... answered Aug 27 '08 at 14:12
SQLMenaceSQLMenace
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How to specify a multi-line shell variable?
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Use read with a heredoc as shown below:
read -d '' sql << EOF
select c1, c2 from foo
where c1='something'
EOF
echo "$sql"
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What's the Linq to SQL equivalent to TOP or LIMIT/OFFSET?
...erty name.
See http://blogs.msdn.com/vbteam/archive/2008/01/08/converting-sql-to-linq-part-7-union-top-subqueries-bill-horst.aspx for more detail.
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Delete duplicate records in SQL Server?
...ersion with the lowest ID in the table.
Edit
Re McGyver's comment - as of SQL 2012
MIN can be used with numeric, char, varchar, uniqueidentifier, or datetime columns, but not with bit columns
For 2008 R2 and earlier,
MIN can be used with numeric, char, varchar, or datetime columns, but ...
Remove DEFINER clause from MySQL Dumps
I have a MySQL dump of one of my databases. In it, there are DEFINER clauses which look like,
24 Answers
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Error 1046 No database Selected, how to resolve?
Error
SQL query:
16 Answers
16
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Entity Framework. Delete all rows in table
..., this is how you currently do it in EF5 and EF6:
context.Database.ExecuteSqlCommand("TRUNCATE TABLE [TableName]");
Assuming context is a System.Data.Entity.DbContext
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