SQL database in Microsoft Fabric The MERGE statement runs insert, update, or delete operations on a target table from the results of a join with a source table. For example, synchronize two tables by inserting,
In the NOT MATCHED case, the INSERT expressions can refer to any field of the source. Example The following example merges rows from the second table into the first table if the rows don't exist in the first table. Note that the columns listed in the VALUES clause must be prefixed by ...
Specifies the number for this SQL statement that is used in EXPLAIN output and trace records. The number is used for the QUERYNO column of the plan table for the rows that contain information about this SQL statement. This number is also used in the QUERYNO column of the SYSIBM.SYSSTMT ...
If a target column is not updatable (for example, a column in a view that is defined as an expression), then it must be assigned the extended indicator variable-based value of unassigned (SQLSTATE 42808). If the target column is a column defined as GENERATED ALWAYS, then it must be ass...
Merging into a Table: Example The following example uses the bonuses table in the sample schema oe with a default bonus of 100. It then inserts into the bonuses table all employees who made sales, based on the sales_rep_id column of the oe.orders table. Finally, the human resources manag...
"Inserting Into a Table with Error Logging: Example" Examples Merging into a Table: Example The following example uses thebonusestable in the sample schemaoewith a default bonus of 100. It then inserts into thebonusestable all employees who made sales, based on thesales_rep_idcolumn of theoe...
When you create aMERGEtable, MySQL creates a.MRGfile on disk that contains the names of the underlyingMyISAMtables that should be used as one. The table format of theMERGEtable is stored in the MySQL data dictionary. The underlying tables do not have to be in the same database as theMER...
Only set @join_unique_key to 1 if you have a constraint on the joining column in the underlying table for the parent article that guarantees uniqueness. If @join_unique_key is set to 1 incorrectly, non-convergence of data may occur. Examples (Transact-SQL) This exam...
Specify @publication, the name of one of the articles in the relationship for @article, and the name of the relationship from step 1 for @filtername. Example (Transact-SQL) This example enables precomputed partitions on an existing publication, and creates a logical record comprising the two ...
For more information about these functions, see HOST_NAME (Transact-SQL), SUSER_SNAME (Transact-SQL), and Parameterized Row Filters. The values returned for each Subscriber should not change after the partition is created. For example, if you use HOST_NAME() in a filter (and do not ...