IF EXISTS (SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = N'Customers') BEGIN PRINT 'Table Exists' END Approach 2: Using OBJECT_ID() function. We can use OBJECT_ID() function like below to check if a Customers Table exists in the current database. IF OBJECT_ID(N'dbo.Customers', N'U') IS …

May 29, 2017 · Suppose the database name schoolmanagementsystem, table name student, and table columns name are student_id, student_first_name, and student_last_name. So you can create a table ( student ) in a particular database ( schoolmanagementsystem ) following this way.

Now restore the database to a new database and rebuild the missing table(s). Then dump the broken database. In our case we were also constantly getting mysql has gone away messages at random intervals on all databases; once the damaged database were …

Apr 25, 2017 · A database schema is the collection of relation schemas for a whole database. A table is a structure with a bunch of rows (aka "tuples"), each of which has the attributes defined by the schema. Tables might also have indexes on them to aid in looking up values on certain columns. A database is, formally, any collection of data. In this context ...

If efficiency of storage space is your main concern, then I would break the history into multiple tables. This would mean having new column value table linked to both an edit event table and a column definition table. The edit event table would record the user and time stamp, the column definition table would record the table, column, and data ...

Oct 25, 2011 · Thank you, but this actually isn't working out either. I have a (very small) test database, the table of interest has two indexes - a primary clustered index on one column and a non-clustered index on two of the other columns. This query says each of them is using 16kB, but sp_spaceused says total index usage is 24kB.

Mar 15, 2013 · Open the database in SQL Management Studio. Right-click on the table that you want to duplicate. Select Script Table as -> Create to -> New Query Editor Window. This will generate a script to recreate the table in a new query window. Change the table name and relative keys & constraints in the script. Execute the script.

Jun 2, 2010 · Well, first off, the database table does not reorder itself when we put index on a column to optimize the query performance. An index is a data structure, (most commonly its B-tree {Its balanced tree, not binary tree}) that stores the value for a specific column in a table. The major advantage of B-tree is that the data in it is sortable.

Sep 16, 2016 · A 1 to 1 relationship does not mean that for each record in table A there is 1 corresponding record in table B. Instead, it means that for each record in table A there will be 0 or 1 corresponding records in table B. Shane D. and others describe scenarios that take advantage of …

Add a mod_user field to your source table (the one you want to log). Create a log table that contains the fields you want to log, plus a log_datetime and seq_num field. seq_num is the primary key. Build a trigger on the source table that inserts the current record into the log table whenever any monitored field is changed.