Sql only select from current date up to 90 days

#SQL ONLY SELECT FROM CURRENT DATE UP TO 90 DAYS UPDATE#

Using the examples below the query would only show Jane Doe. So it does: selects any matching rows, deletes the table from the DB, and ignores anything else. I want to run a query to pull up only records if they have not donated in the last 90 days. SELECT * FROM MyTable WHERE StreetAddress = 'x' A perfectly valid SELECTДROP TABLE MyTable A perfectly valid 'delete the table' command SELECT * FROM MyTable WHERE StreetAddress = 'x' DROP TABLE MyTable -'Which SQL sees as three separate commands: If I come along and type this instead: 'x' DROP TABLE MyTable -' Then SQL receives a very different command: SELECT * FROM MyTable WHERE StreetAddress = 'Baker's Wood'The quote the user added terminates the string as far as SQL is concerned and you get problems. When you concatenate strings, you cause problems because SQL receives commands like: It leaves you wide open to accidental or deliberate SQL Injection attack which can destroy your entire database. Never concatenate strings to build a SQL command. If the content was useful in other ways, please consider giving it Thumbs Up. This will help others find it more readily. Never do that - it's extremely dangerous. Filter ( YourDataTableName, DateDiff ( Now (), 'End Date', Days ) <90 ) Please click Accept as solution if my post helped you solve your issue. At the moment, if a client changes his mobile, how do you know which row to UPDATE?

You should have an ID column - IDENTITY is fine - to give you an absolute reference to the column when you need to change it.

#SQL ONLY SELECT FROM CURRENT DATE UP TO 90 DAYS UPDATE#

Start by looking at your data - until you CONVERT it it has no formatting info at all, it's stored as 'ticks since a specific point in time' rather than years, months, and days - and get that right (I'd use C# or VB to read the row, make sure it's right, and UPDATE sql where necessary)Д«ut looking at your database definition from your comments below, there are other problems here.Дon't store TIME info separately from DATE, and always store DATETIME info in UCT, not local time - that way when the local 'summer' or 'daylight saving' time comes in or out, your DB doesn't get filled with inconsistent data.Дon't store 'client type' as a string, create a second table, and use a foreign key to index it.ДЎ00 chars is not a good idea for Mobile numbers, or email - in one case it's too big, in the other it's too small! So when you changed your NVARCHAR column to DATETIME, SQL had to try and work out what each date was. This example changes the compatibility level of the AdventureWorks2019 database to 150, which is the compatibility level for SQL Server 2019 (15.x).That's why you can't store dates as NVARCHAR - when SQL has to convert them back, it will guess what format it is, and most likely get it wrong, in some cases if not all. There could be on-demand saves and maybe automated saves with a retention of one per day for the past 7 days, one per week for the past 3 months, one per month for the past 5 years etc. This example returns the compatibility level of the AdventureWorks2019 sample database.ДЇROM sys.databases WHERE name = 'AdventureWorks2019' Д¬hange the compatibility level of a databaseД¬opy and paste the following example into the query window and select Execute. This means you only keep a few states of the data in memory. View the compatibility level of a databaseД¬onnect to the appropriate server or instance hosting your database.Д¬opy and paste the following example into the query window and select Execute. You can use Transact-SQL to view or change the compatibility level of a database using SSMS or Azure Data Studio. The available options for different Database Engine versions are listed in the ALTER DATABASE Compatibility Level (Transact-SQL) page. To change the compatibility level, select a different option from the list. The current compatibility level is displayed in the Compatibility level list box. In the Select a page pane, select Options. The Database Properties dialog box opens. Right-click the database, and then select Properties. SQL answers related to now + 90 days sql sql last 7 days sql select data from last week sql server today minus n select the date 30 days less that the.

The query also selects rows with dates that lie in the future. You cannot modify the compatibility level of system databases in Azure SQL Database. mysql> SELECT something FROM tblname -> WHERE DATESUB(CURDATE(),INTERVAL 30 DAY) < datecol.

Sql only select from current date up to 90 days