Updating into string

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The following additional syntax restrictions apply to UPDATE statements that occur within the body of a CREATE TRIGGER statement.specified as part of an UPDATE statement within a trigger body must be unqualified. prefix on the table name of the UPDATE is not allowed within triggers.Unless the table to which the trigger is attached is in the TEMP database, the table being updated by the trigger program must reside in the same database as it.If the table to which the trigger is attached is in the TEMP database, then the unqualified name of the table being updated is resolved in the same way as it is for a top-level statement (by searching first the TEMP database, then the main database, then any other databases in the order they were attached).This can also be used to change the column to NULL if the column has no default and is defined to allow null values.Compound assignment operator: = Add and assign -= Subtract and assign *= Multiply and assign /= Divide and assign %= Modulo and assign &= Bitwise AND and assign ^= Bitwise XOR and assign |= Bitwise OR and assign Returns updated data or expressions based on it as part of the UPDATE operation. Table1 (c1 int PRIMARY KEY NOT NULL, c2 int NOT NULL); GO CREATE TABLE dbo. Table2 WHERE CURRENT OF abc; GO SELECT c1, c2 FROM dbo.The ORDER BY clause on an UPDATE statement is used only to determine which rows fall within the LIMIT.

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If the object being updated appears more than one time in the FROM clause, one, and only one, reference to the object must not specify a table alias. Avoid using these hints in this context in new development work, and plan to modify applications that currently use them.Columns that do not appear in the list of assignments are left unmodified.The scalar expressions may refer to columns of the row being updated.Any characters not found in this code page are lost.Specifies that the default value defined for the column is to replace the existing value in the column.

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