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SQL JOIN - WHERE clause vs. ON clause

After reading it, this is not a duplicate of Explicit vs Implicit SQL Joins . The answer may be related (or even the same) but the question is different. ...
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SQL Add foreign key to existing column

If I am using the following SQL command in SQL Server 2008 to update a table with a foreign key constraint: 6 Answers ...
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Best way to work with transactions in MS SQL Server Management Studio

Let's say I have an SQL statement that's syntactically and semantically correct so it executes. 2 Answers ...
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What exactly is Arel in Rails 3.0?

...ement for ActiveRecord No, it isn't. It's a replacement for hand-crafting SQL queries in strings. It is a common query layer that underlies ActiveRecord, but it can also be used as an underpinning for DataMapper, for example. If it is a replacement for anything, it's a replacement for Ambition. Or,...
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1052: Column 'id' in field list is ambiguous

... SQL supports qualifying a column by prefixing the reference with either the full table name: SELECT tbl_names.id, tbl_section.id, name, section FROM tbl_names JOIN tbl_section ON tbl_section.id = tbl_names.id ...or a ta...
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How to use NULL or empty string in SQL

...ow to use NULL and an empty string at the same time in a WHERE clause in SQL Server. I need to find records that have either null values or an empty string. Thanks. ...
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财务计算器拓展:复利计算、平均值、中位数、众数、方差计算 - App Invento...

...现值和投资回报率。它还使您能够进行基本的统计计算,包括计算平均值、中位数、众数、方差等。无论您是在创建个人财务应用程序还是数据分析工具,此扩展都是您不可或缺的得力助手。 FeaturesWith the Financial Calculator extens...
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SQL Server Management Studio won't let me add an index to a table

...ble just in case, and refreshed and restarted SSMS, but no luck. I'm using SQL Server 2012 Business Intelligence SP1 CTP. 5...
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How to rename a table in SQL Server?

The SQL query that I have used is : 8 Answers 8 ...
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How can I solve a connection pool problem between ASP.NET and SQL Server?

...he code between .Open and Close throws an exception: var connection = new SqlConnection(connectionString); connection.Open(); // some code connection.Close(); The correct way would be this: var connection = new SqlConnection(ConnectionString); try { connection.Open(); s...