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Which is faster: multiple single INSERTs or one multiple-row INSERT?
...counter-productive, but in most cases it's at least 10,000 rows. So if you batch them up to 1,000 rows, you're probably safe.
If you're using MyISAM, there's a whole other load of things, but I'll not bore you with those. Peace.
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How to 'bulk update' with Django?
... for updating thousands of rows at once. Though it is suitable for smaller batches 10's to 100's. The size of the batch that is right for you depends on your CPU and query complexity. This tool is more like a wheel barrow than a dump truck.
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How do I measure execution time of a command on the Windows command line?
... is not recognized as an internal or external command, operable program or batch file."
– Colonel Panic
Sep 12 '13 at 15:11
3
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Is there a pretty print for PHP?
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Enve
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answered Mar 8 '12 at 13:21
Joel HernandezJoel Hernandez
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Int division: Why is the result of 1/3 == 0?
... returns the true result of division rounded towards zero. The result of 0.333... is thus rounded down to 0 here. (Note that the processor doesn't actually do any rounding, but you can think of it that way still.)
Also, note that if both operands (numbers) are given as floats; 3.0 and 1.0, or even ...
How to get the insert ID in JDBC?
...using Statement.RETURN_GENERATED_KEYS, try this:
String[] returnId = { "BATCHID" };
String sql = "INSERT INTO BATCH (BATCHNAME) VALUES ('aaaaaaa')";
PreparedStatement statement = connection.prepareStatement(sql, returnId);
int affectedRows = statement.executeUpdate();
if (affectedRows == 0) {
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Removing duplicate rows in vi?
... is not recognized as an internal or external command, operable program or batch file.
– hippietrail
Apr 29 '15 at 1:49
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IDENTITY_INSERT is set to OFF - How to turn it ON?
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I believe it needs to be done in a single query batch. Basically, the GO statements are breaking your commands into multiple batches and that is causing the issue. Change it to this:
SET IDENTITY_INSERT tbl_content ON
/* GO */
...insert command...
SET IDENTITY_INSERT ...
SqlException from Entity Framework - New transaction is not allowed because there are other threads
...likely to have a clustered index.
This version will query the database in batches of 100. Note that SaveChanges() is called for each entity.
If you want to improve your throughput dramatically, you should call SaveChanges() less frequently. Use code like this instead:
foreach (var chunk in clie...
How Do I Convert an Integer to a String in Excel VBA?
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YosemYosem
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