大约有 40,000 项符合查询结果(耗时:0.0278秒) [XML]

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How do you count the number of occurrences of a certain substring in a SQL varchar?

...h an empty string and comparing the lengths Declare @string varchar(1000) Set @string = 'a,b,c,d' select len(@string) - len(replace(@string, ',', '')) share | improve this answer | ...
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A monad is just a monoid in the category of endofunctors, what's the problem?

...ors of X, with product × replaced by composition of endofunctors and unit set by the identity endofunctor. X here is a category. Endofunctors are functors from a category to itself (which is usually all Functors as far as functional programmers are concerned, since they're mostly dealing with just...
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How ListView's recycling mechanism works

...er.cbCheck=(CheckBox)row.findViewById(R.id.checkBox); row.setTag(holder); } else { holder=(PakistaniDrama)row.getTag(); } holder.tvDramaName.setText(dramaList.get(position).getDramaName()); holder.cbCheck.setChecked(checks.get(positio...
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git push to specific branch

...). The branch(es) to push defaults (in current versions of git) to : if unset, which means matching, but that's supposed to change in the future. – torek Oct 3 '13 at 9:08 ...
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Visual Studio: Make view code default

...n a file and select "Open With..." Select "CSharp Editor" and then click "Set as Default". share | improve this answer | follow | ...
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Find a value anywhere in a database

...LARE @Results TABLE(ColumnName nvarchar(370), ColumnValue nvarchar(3630)) SET NOCOUNT ON DECLARE @TableName nvarchar(256), @ColumnName nvarchar(128), @SearchStr2 nvarchar(110) SET @TableName = '' SET @SearchStr2 = QUOTENAME('%' + @SearchStr + '%','''') WHILE @TableName IS NOT NULL BEGIN SET ...
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How do I search an SQL Server database for a string?

...ndMyData_String @DataToFind NVARCHAR(4000), @ExactMatch BIT = 0 AS SET NOCOUNT ON DECLARE @Temp TABLE(RowId INT IDENTITY(1,1), SchemaName sysname, TableName sysname, ColumnName SysName, DataType VARCHAR(100), DataFound BIT) INSERT INTO @Temp(TableName,SchemaName, ColumnName, DataType)...
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ManyRelatedManager object is not iterable

...e) like so (note, you use the through table name, in lowercase, suffixing _set): {% for roominfo in participant.roomchoicethru_set.all %} {{ roominfo.room}} {{ roominfo.telnumber}} {% endfor %} share | ...
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.rar, .zip files MIME Type

... the stream is. Note: For upload it is not safe to rely on the mime type set in the Content-Type header. The header is set on the client and can be set to any random value. Instead you can use the php file info functions to detect the file mime-type on the server. For download: If you want to...
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How do I execute inserts and updates in an Alembic upgrade script?

...ions as described below. The following is an example migration script that sets up some declarative models that will be used to manipulate data in a session. The key points are: Define the basic models you need, with the columns you'll need. You don't need every column, just the primary key and t...