44 lines
1.8 KiB
C#
44 lines
1.8 KiB
C#
namespace HanaTui.Hana;
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/// <summary>
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/// Builds the SQL / shell command strings for each operation.
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/// All SQL is built here; nothing else constructs query strings.
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/// </summary>
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public static class SqlQueryBuilder
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{
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public static string ExportSchema(string schema, string exportDir, int threads)
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=> $"EXPORT \"{schema}\".\"*\" AS BINARY INTO '{exportDir}' WITH REPLACE THREADS {threads} NO DEPENDENCIES;";
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public static string ImportSchema(string schema, string importDir, int threads, bool replace)
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{
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var opts = replace ? "REPLACE" : "IGNORE EXISTING";
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return $"IMPORT \"{schema}\".\"*\" AS BINARY FROM '{importDir}' WITH {opts} THREADS {threads};";
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}
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public static string ImportSchemaWithRename(
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string sourceSchema, string targetSchema, string importDir, int threads, bool replace)
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{
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var opts = replace ? "REPLACE" : "IGNORE EXISTING";
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return $"IMPORT \"{sourceSchema}\".\"*\" AS BINARY FROM '{importDir}' " +
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$"WITH {opts} RENAME SCHEMA \"{sourceSchema}\" TO \"{targetSchema}\" THREADS {threads};";
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}
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public static string DropSchema(string schema)
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=> $"DROP SCHEMA \"{schema}\" CASCADE";
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public static string RenameCompanyInCinf(string schema, string newName)
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=> $"UPDATE \"{schema}\".CINF SET \"CompnyName\" = '{Escape(newName)}';";
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public static string RenameCompanyInOadm(string schema, string newName)
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=> $"UPDATE \"{schema}\".OADM SET \"CompnyName\" = '{Escape(newName)}', \"PrintHeadr\" = '{Escape(newName)}';";
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public static string GetTenantName()
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=> "SELECT DATABASE_NAME FROM SYS.M_DATABASES;";
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public static string BackupTenant(string backupPrefix)
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=> $"BACKUP DATA USING FILE ('{backupPrefix}')";
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// SQL single-quote escape
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private static string Escape(string value) => value.Replace("'", "''");
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}
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