It will not fire any TRIGGER defined in the table.If the table is published by using TRANSACTIONAL REPLICATION or MERGE REPLICATION.If the table is participated in an INDEXED VIEW.Cannot TRUNCATE a table if there is a FOREIGN KEY reference.TRUNCATE can be applied on whole table and no on part of it (instead with DELETE command you can associate a WHERE clause).If exists IDENTITY field, this will be reset.Truncate operation doesn't store in transaction log file.Unlike DROP TABLE, this preserves the table itself and its structure and you can continue to insert new rows into that table.Īnother way to delete all rows in table is truncate it, as follow: TRUNCATE TABLE HelloWordsĭifference with DELETE operation are several: The table will contain no rows after you run this code. This will delete all the data from the table. Values in the new column are the values that were computed at the time When a computed column is included in the select list, the corresponding column in the new table is not a computed column.Table, alter the column definition after executing the SELECT.INTO The select list, the sparse column property does not transfer to theĬolumn in the new table. Specifying an ORDER BY clause does not guarantee the rows are inserted in the specified order.Them after executing the SELECT.INTO statement. If these objects are required, you can create Indexes, constraints, and triggers defined in the source table are not transferred to the new table, nor can they be specified in the.Table, you must first create the partitioned table and then use the Partition scheme of the source table instead, the new table isĬreated in the default filegroup. You cannot use SELECT…INTO to create a partitioned table, even when the source table is partitioned.You cannot specify a table variable or table-valued parameter as the new table.Hence it needs to be ended with another closing star slash.Ĭreate new table and insert records from old table SELECT * INTO NewTable FROM OldTableĬreates a new table with structure of old table and inserts all rows into the new table. The slash star even though inside the quote is considered as the start of a comment.
SQL SERVER MANAGEMENT STUDIO TUTORIAL PDF CODE
The following code will result in an error /* Slash star comments can be nested and a starting /* inside a slash star comment needs to be ended with a */ to be valid. This can happen when SQL is captured during troubleshooting. Slash star comments have the advantage of keeping the comment usable if the SQL Statement loses new line characters. All text between those delimiters is considered as a comment block. Slash star comments begin with /* and end with */. Comments are ignored by the database engine, and are meant for people to read.Ĭomments are preceded by - and are ignored until a new line is encountered: - This is a comment Transact-SQL supports two forms of comment writing. String Aggregate functions in SQL Server.SQL Server Evolution through different versions (2000 - 2016).Retrieve Information about your Instance.Retrieve information about the database.Microsoft SQL Server Management Studio Shortcut Keys.Export data in txt file by using SQLCMD.Delimiting special characters and reserved words.Getting started with Microsoft SQL Server.
0 kommentar(er)
